Creazione di informazioni di contatto con CLR e XML
L'esempio Contact per SQL Server offre interessanti utilità che costituiscono un ulteriore livello di funzionalità disponibile per il database di esempio AdventureWorks2012 di base. La prima utilità consente di creare record con informazioni di contatto per i diversi tipi di persone presenti nel database AdventureWorks2012. Le informazioni di contatto vengono specificate tramite XML e vengono passate a una stored procedure basata su C# o VB per creare il codice XML e inserirlo nelle tabelle appropriate con il database.
Prerequisiti
Per creare ed eseguire questo progetto, è necessario installare il software seguente:
SQL Server o SQL Server Express. SQL Server Express è disponibile gratuitamente nel sito Web di documentazione ed esempi per SQL Server Express.
Database AdventureWorks, disponibile nel sito Web per sviluppatori di SQL Server.
.NET Framework SDK 2.0 o versione successiva oppure Microsoft Visual Studio 2005 o versione successiva. .NET Framework SDK è disponibile gratuitamente.
È necessario inoltre che siano soddisfatte le condizioni seguenti:
Per l'istanza di SQL Server utilizzata deve essere abilitata l'integrazione con CLR.
Per abilitare l'integrazione con CLR, effettuare le operazioni seguenti:
Abilitazione dell'integrazione con CLR
- Eseguire i comandi Transact-SQL seguenti:
sp_configure 'clr enabled', 1
GO
RECONFIGURE
GO
[!NOTA]
Per abilitare CLR, è necessario disporre dell'autorizzazione ALTER SETTINGS a livello di server, che viene assegnata implicitamente ai membri dei ruoli predefiniti del server sysadmin e serveradmin.
Il database AdventureWorks deve essere installato nell'istanza di SQL Server in uso.
Se non si dispone dei diritti di amministratore per l'istanza di SQL Server in uso, è necessario ricevere da un amministratore l'autorizzazione CreateAssembly per completare l'installazione.
Compilazione dell'esempio
Creare ed eseguire l'esempio tramite le istruzioni seguenti:
Aprire un prompt dei comandi di .NET Framework o Visual Studio.
Se necessario, creare una directory per l'esempio. Per questo esempio verrà utilizzata la directory C:\MySample.
In c:\MySample creare Contacts.vb (per l'esempio Visual Basic) o Contacts.cs (per l'esempio C#) e copiare nel file il codice di esempio appropriato, Visual Basic o C#, riportato di seguito.
Compilare il codice di esempio dal prompt della riga di comando eseguendo una delle istruzioni seguenti, a seconda del linguaggio scelto.
Vbc /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Data.dll,C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.dll,C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Xml.dll /target:library Contacts.vb
Csc /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Data.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.XML.dll /target:library Contacts.cs
Copiare il codice di installazione Transact-SQL in un file e salvarlo come Install.sql nella directory dell'esempio.
Se l'esempio è installato in una directory diversa da C:\MySample\, modificare il file Install.sql come indicato, in modo che punti al percorso appropriato.
Distribuire l'assembly e la stored procedure eseguendo
- sqlcmd -E -I -i install.sql
Copiare lo script di comandi di test Transact-SQL in un file e salvarlo come test.sql nella directory dell'esempio.
Eseguire lo script di test con il comando seguente
- sqlcmd -E -I -i test.sql
Copiare lo script di pulizia Transact-SQL in un file e salvarlo come cleanup.sql nella directory dell'esempio.
Eseguire lo script con il comando seguente
- sqlcmd -E -I -i cleanup.sql
Codice di esempio
Di seguito sono illustrati i listati di codice per l'esempio.
C#
using System;
using System.IO;
using System.Data;
using System.Data.SqlTypes;
using System.Xml;
using System.Collections.Generic;
using System.Globalization;
using System.Runtime.Serialization;
using Microsoft.SqlServer.Server;
using System.Data.SqlClient;
/// <summary>
/// Utility class for creating contact information. A row in the contact table
/// is inserted. Additionally, rows in one or more other tables are inserted based on
/// the information provided in the XML document passed to the CreateContact function.
/// For individuals and employees, the contact record is one to one relationship with
/// the respective tables so those rows are created when the contact record is created.
/// For stores and vendors, there is a one to many relationship for contacts, so a row is added to
/// either the Sales.StoreContact or Purchasing.VendorContact table (as appropriate), but
/// neither store or vendor rows are inserted into the database.
///
/// </summary>
public sealed class ContactUtils
{
private ContactUtils()
{
}
public static void CreateContact(SqlString contactData,
out SqlInt32 contactId,
out SqlInt32 customerId)
{
//TODO: When we can pass XML from T-SQL then contactData can be a SqlXmlReader
using (StringReader sr = new StringReader(contactData.Value))
{
XmlReader reader = XmlReader.Create(sr);
ContactCreator creator = null;
try
{
reader.MoveToContent();
EnsureEqual(reader.LocalName, "Contact");
reader.MoveToContent();
reader.ReadStartElement();
switch (reader.LocalName)
{
case "Individual": creator = new IndividualCreator(); break;
case "Store": creator = new StoreCreator(); break;
case "Vendor": creator = new VendorCreator(); break;
case "Employee": creator = new EmployeeCreator(); break;
default: break;
}
if (creator != null)
{
reader.ReadStartElement();
reader.MoveToContent();
creator.LoadDictionary(reader);
creator.Create();
contactId = creator.ContactId;
customerId = creator.CustomerId;
}
else
{
contactId = -1;
customerId = -1;
throw new AWUtilitiesContactParseException(
"Individual | Store | Vendor | Employee", reader.LocalName);
}
}
finally
{
reader.Close();
}
}
}
public static void EnsureEqual(String localName,
String desiredLocalName)
{
if (localName == null) throw new ArgumentNullException("localName");
if (!localName.Equals(desiredLocalName))
{
throw new AWUtilitiesContactParseException(desiredLocalName,
localName);
}
}
}
/// <summary>
///Base class for all the contact creation classes. Responsible for parsing the XML,
///providing the public API for all types of contacts, and for inserting the row
///in the Person.Contact table.
/// </summary>
public abstract class ContactCreator
{
internal int parameterCount;
internal int valueCount;
internal Dictionary<String, String> contactDictionary = new Dictionary<
String, String>();
private static readonly String[] xmlColumns = new String[] {
"AdditionalContactInfo", "Demographics"
};
private static readonly String[] nestedColumns = new String[] {
"Address"
};
public int ContactId
{
get
{
String val;
if (contactDictionary.TryGetValue("ContactID", out val))
return Int32.Parse(val, CultureInfo.InvariantCulture);
else
return -1;
}
set
{
contactDictionary["ContactID"]
= value.ToString(CultureInfo.InvariantCulture);
}
}
public int CustomerId
{
get
{
string val;
if (contactDictionary.TryGetValue("CustomerID", out val))
return Int32.Parse(val, CultureInfo.InvariantCulture);
else
//Not every contact is for a customer. Return -1 in that case.
return -1;
}
set
{
contactDictionary["CustomerID"]
= value.ToString(CultureInfo.InvariantCulture);
}
}
public void LoadDictionary(XmlReader reader)
{
while (reader.IsStartElement())
{
String key = reader.LocalName;
String val;
if (Array.IndexOf(xmlColumns, key) > -1)
val = reader.ReadInnerXml();
else if (Array.IndexOf(nestedColumns, key) > -1)
{
reader.ReadStartElement();
LoadDictionary(reader);
reader.ReadEndElement();
continue;
}
else
val = reader.ReadElementString();
contactDictionary.Add(key, val);
}
}
protected void ResetCounters(int valueForReset)
{
parameterCount = valueForReset;
valueCount = valueForReset;
}
public String MaybeParameter(String name)
{
if (contactDictionary.ContainsKey(name))
{
if (parameterCount++ == 0)
return name;
else
return ", " + name;
}
else
return string.Empty;
}
public String MaybeValue(String name)
{
if (contactDictionary.ContainsKey(name))
{
if (valueCount++ == 0)
return "@" + name;
else
return ", @" + name;
}
else
return string.Empty;
}
public static object TypeConvert(String valueToConvert, SqlDbType parameterType)
{
if (valueToConvert == null)
throw new ArgumentNullException("valueToConvert");
switch (parameterType)
{
case SqlDbType.BigInt:
return Int64.Parse(valueToConvert,
CultureInfo.InvariantCulture);
case SqlDbType.Int:
return Int32.Parse(valueToConvert,
CultureInfo.InvariantCulture);
case SqlDbType.SmallInt:
return Int16.Parse(valueToConvert,
CultureInfo.InvariantCulture);
case SqlDbType.TinyInt:
return Byte.Parse(valueToConvert,
CultureInfo.InvariantCulture);
case SqlDbType.Bit:
{
if (valueToConvert.Equals("1") ||
valueToConvert.Equals("true")) return 1;
else
return 0;
}
case SqlDbType.NVarChar:
case SqlDbType.VarChar:
case SqlDbType.NChar:
case SqlDbType.NText:
case SqlDbType.Text:
case SqlDbType.Char:
case SqlDbType.Xml:
return valueToConvert;
case SqlDbType.DateTime:
return DateTime.Parse(valueToConvert,
CultureInfo.InvariantCulture);
case SqlDbType.Money:
return Decimal.Parse(valueToConvert,
CultureInfo.InvariantCulture);
default:
return "unknown conversion";
}
}
public void MaybeAddCommandParameter(String keyName, String parameterName,
SqlCommand command,
SqlDbType parameterType,
bool isRequired,
String defaultValue)
{
if (isRequired || contactDictionary.ContainsKey(keyName))
{
SqlParameter param =
new SqlParameter("@" + parameterName, parameterType);
String val = (contactDictionary.ContainsKey(keyName)) ?
contactDictionary[keyName] : defaultValue;
param.Value = TypeConvert(val, parameterType);
command.Parameters.Add(param);
}
}
public void MaybeAddCommandParameter(String name, SqlCommand command,
SqlDbType parameterType,
bool isRequired,
String defaultValue)
{
MaybeAddCommandParameter(name, name, command, parameterType,
isRequired, defaultValue);
}
public void MaybeAddCommandParameter(String name, SqlCommand command,
SqlDbType parameterType, int size,
bool isRequired,
String defaultValue)
{
if (isRequired || contactDictionary.ContainsKey(name))
{
MaybeAddCommandParameter(name, command, parameterType,
isRequired, defaultValue);
command.Parameters[command.Parameters.Count - 1].Size = size;
}
}
public void MaybeAddCommandParameter(String keyName, String paramName, SqlCommand command,
SqlDbType parameterType, int size,
bool isRequired,
String defaultValue)
{
if (isRequired || contactDictionary.ContainsKey(keyName))
{
MaybeAddCommandParameter(keyName, paramName, command, parameterType,
isRequired, defaultValue);
command.Parameters[command.Parameters.Count - 1].Size = size;
}
}
public virtual void Create()
{
using (SqlConnection conn = new SqlConnection("context connection=true"))
{
SqlCommand command = conn.CreateCommand();
ResetCounters(1);
string parameters = String.Format(CultureInfo.InvariantCulture,
"NameStyle{0}, FirstName{1}, LastName{2}{3}{4}{5}, "
+ "PasswordHash, PasswordSalt{6}",
MaybeParameter("Title"), MaybeParameter("MiddleName"),
MaybeParameter("Suffix"), MaybeParameter("EmailAddress"),
MaybeParameter("EmailPromotion"), MaybeParameter("Phone"),
MaybeParameter("AdditionalContactInfo"));
string values = String.Format(CultureInfo.InvariantCulture,
"@NameStyle{0}, @FirstName{1}, @LastName{2}{3}{4}{5}, "
+ "@PasswordHash, @PasswordSalt{6}",
MaybeValue("Title"), MaybeValue("MiddleName"),
MaybeValue("Suffix"), MaybeValue("EmailAddress"),
MaybeValue("EmailPromotion"), MaybeValue("Phone"),
MaybeValue("AdditionalContactInfo"));
String text = String.Format(CultureInfo.InvariantCulture,
"INSERT INTO Person.Contact ({0}) VALUES ({1}); "
+ "SELECT CAST(SCOPE_IDENTITY() as Int);",
parameters, values);
command.CommandText = text;
MaybeAddCommandParameter("NameStyle", command,
SqlDbType.Bit, true, "0");
MaybeAddCommandParameter("Title", command,
SqlDbType.NVarChar, 8, false, null);
MaybeAddCommandParameter("FirstName", command,
SqlDbType.NVarChar, 50, true, string.Empty);
MaybeAddCommandParameter("MiddleName", command,
SqlDbType.NVarChar, 50, false, null);
MaybeAddCommandParameter("LastName", command,
SqlDbType.NVarChar, 50, true, string.Empty);
MaybeAddCommandParameter("Suffix", command,
SqlDbType.NVarChar, 10, false, null);
MaybeAddCommandParameter("EmailAddress", command,
SqlDbType.NVarChar, 50, true, string.Empty);
MaybeAddCommandParameter("EmailPromotion", command,
SqlDbType.Int, false, null);
MaybeAddCommandParameter("Phone", command,
SqlDbType.NVarChar, 25, false, null);
MaybeAddCommandParameter("PasswordHash", command,
SqlDbType.VarChar, 40, true, string.Empty);
MaybeAddCommandParameter("PasswordSalt", command,
SqlDbType.VarChar, 10, true, string.Empty);
MaybeAddCommandParameter("AdditionalContactInfo", command,
SqlDbType.Xml, false, null);
conn.Open();
this.ContactId = (int)command.ExecuteScalar();
}
}
}
/// <summary>
///A base class based on ContactCreator which is responsible for inserting information about
///a customer by inserting a row in the
///Sales.Customer table. Currently only used by the IndividualCreator class, but
///it might be useful if there was a variant made of the StoreCreator which actually inserted
///a Sales.Store row.
/// </summary>
public abstract class CustomerCreator : ContactCreator
{
public override void Create()
{
base.Create();
using (SqlConnection conn
= new SqlConnection("context connection=true"))
{
SqlCommand command = conn.CreateCommand();
if (!contactDictionary.ContainsKey("CustomerType"))
contactDictionary["CustomerType"] = "I";
ResetCounters(0);
string parameters = String.Format(CultureInfo.InvariantCulture,
"{0}{1}{2}", MaybeParameter("SalesPersonID"),
MaybeParameter("TerritoryID"),
//CustomerType is always present, but we
//need to get the commas right
MaybeParameter("CustomerType"));
string values = String.Format(CultureInfo.InvariantCulture,
"{0}{1}{2}", MaybeValue("SalesPersonID"),
MaybeValue("TerritoryID"), MaybeValue("CustomerType"));
command.CommandText = String.Format(CultureInfo.InvariantCulture,
"INSERT INTO Sales.Customer ({0}) VALUES ({1}); "
+ "SELECT CAST(SCOPE_IDENTITY() as Int);",
parameters, values);
MaybeAddCommandParameter("SalesPersonID", command,
SqlDbType.Int, false, null);
MaybeAddCommandParameter("TerritoryID", command,
SqlDbType.Int, false, null);
MaybeAddCommandParameter("CustomerType", command,
SqlDbType.NChar, 1, true, "I");
conn.Open();
this.CustomerId = (int)command.ExecuteScalar();
}
}
}
/// <summary>
///Responsible for adding information about an individual purchasing by
///inserting a row in the Sales.Individual table.
/// </summary>
public class IndividualCreator : CustomerCreator
{
public override void Create()
{
base.Create();
using (SqlConnection conn
= new SqlConnection("context connection=true"))
{
SqlCommand command = conn.CreateCommand();
ResetCounters(2);
String parameters = String.Format(CultureInfo.InvariantCulture,
"CustomerID, ContactID{0}", MaybeParameter("Demographics"));
String values = String.Format(CultureInfo.InvariantCulture,
"@CustomerID, @ContactID{0}", MaybeValue("Demographics"));
command.CommandText =
String.Format(CultureInfo.InvariantCulture,
"INSERT INTO Sales.Individual ({0}) VALUES ({1});",
parameters, values);
MaybeAddCommandParameter("CustomerID", command,
SqlDbType.Int, true, string.Empty);
MaybeAddCommandParameter("ContactID", command,
SqlDbType.Int, true, string.Empty);
MaybeAddCommandParameter("Demographics", command,
SqlDbType.Xml, false, null);
conn.Open();
command.ExecuteNonQuery();
}
}
}
/// <summary>
///Responsible for relating a contact to a store by inserting a row in the
///Sales.StoreContact table.
/// </summary>
public class StoreCreator : ContactCreator
{
public override void Create()
{
base.Create();
using (SqlConnection conn
= new SqlConnection("context connection=true"))
{
SqlCommand command = conn.CreateCommand();
command.CommandText =
String.Format(CultureInfo.InvariantCulture,
"INSERT INTO Sales.StoreContact (CustomerID, ContactID, "
+ "ContactTypeID) VALUES (@CustomerID, @ContactID, @ContactTypeID);");
MaybeAddCommandParameter("CustomerID", command,
SqlDbType.Int, true, string.Empty);
MaybeAddCommandParameter("ContactID", command,
SqlDbType.Int, true, string.Empty);
MaybeAddCommandParameter("ContactTypeID", command,
SqlDbType.TinyInt, true, string.Empty);
conn.Open();
command.ExecuteNonQuery();
}
}
}
/// <summary>
///Responsible for relating a contact to a vendor by inserting a row in the
///Purchasing.VendorContact table.
/// </summary>
public class VendorCreator : ContactCreator
{
public override void Create()
{
base.Create();
using (SqlConnection conn
= new SqlConnection("context connection=true"))
{
SqlCommand command = conn.CreateCommand();
String parameters = "VendorID, ContactID, ContactTypeID";
String values = String.Format(CultureInfo.InvariantCulture,
"@VendorID, @ContactID, @ContactTypeID");
command.CommandText =
String.Format(CultureInfo.InvariantCulture,
"INSERT INTO Purchasing.VendorContact ({0}) VALUES ({1});",
parameters, values);
MaybeAddCommandParameter("VendorID", command,
SqlDbType.Int, true, string.Empty);
MaybeAddCommandParameter("ContactID", command,
SqlDbType.Int, true, string.Empty);
MaybeAddCommandParameter("ContactTypeID", command,
SqlDbType.TinyInt, true, string.Empty);
conn.Open();
command.ExecuteNonQuery();
}
}
}
/// <summary>
///Responsible for adding information about an employee by creating an address and then
///inserting a row in the HumanResources.Employee table.
/// </summary>
public class EmployeeCreator : ContactCreator
{
public override void Create()
{
base.Create();
CreateAddress();
int employeeID = -1;
using (SqlConnection conn = new SqlConnection("context connection=true"))
{
SqlCommand command = conn.CreateCommand();
ResetCounters(3);
String parameters = String.Format(CultureInfo.InvariantCulture,
"NationalIDNumber, ContactID, LoginID{0}, Title, "
+ "BirthDate, MaritalStatus, Gender, HireDate, "
+ "SalariedFlag, VacationHours, SickLeaveHours",
MaybeParameter("ManagerID"));
String values = String.Format(CultureInfo.InvariantCulture,
"@NationalIDNumber, @ContactID, @LoginID{0}, @Title, "
+ "@BirthDate, @MaritalStatus, @Gender, @HireDate, "
+ "@SalariedFlag, @VacationHours, @SickLeaveHours",
MaybeValue("ManagerID"));
command.CommandText =
String.Format(CultureInfo.InvariantCulture,
"INSERT INTO HumanResources.Employee ({0}) VALUES ({1}); "
+ "SELECT CAST(SCOPE_IDENTITY() as Int);",
parameters, values);
MaybeAddCommandParameter("NationalIDNumber", command,
SqlDbType.NVarChar, 15, true, string.Empty);
MaybeAddCommandParameter("ContactID", command,
SqlDbType.Int, true, string.Empty);
MaybeAddCommandParameter("LoginID", command,
SqlDbType.NVarChar, 256, true, string.Empty);
MaybeAddCommandParameter("ManagerID", command,
SqlDbType.Int, false, null);
MaybeAddCommandParameter("JobTitle", "Title", command,
SqlDbType.NVarChar, 50, true, string.Empty);
MaybeAddCommandParameter("BirthDate", command,
SqlDbType.DateTime, true, string.Empty);
MaybeAddCommandParameter("MaritalStatus", command,
SqlDbType.NChar, 1, true, string.Empty);
MaybeAddCommandParameter("Gender", command,
SqlDbType.NChar, 1, true, string.Empty);
MaybeAddCommandParameter("HireDate", command,
SqlDbType.DateTime, true, string.Empty);
MaybeAddCommandParameter("SalariedFlag", command,
SqlDbType.Bit, true, "1");
MaybeAddCommandParameter("VacationHours", command,
SqlDbType.SmallInt, true, "0");
MaybeAddCommandParameter("SickLeaveHours", command,
SqlDbType.SmallInt, true, "0");
conn.Open();
employeeID = (int)command.ExecuteScalar();
}
CreateEmployeeAdddress(employeeID,
int.Parse(contactDictionary["AddressID"],
System.Globalization.CultureInfo.InvariantCulture));
CreateEmployeeDepartmentHistory(employeeID,
int.Parse(contactDictionary["DepartmentID"],
System.Globalization.CultureInfo.InvariantCulture),
int.Parse(contactDictionary["ShiftID"],
System.Globalization.CultureInfo.InvariantCulture));
}
public void CreateAddress()
{
using (SqlConnection conn
= new SqlConnection("context connection=true"))
{
SqlCommand command = conn.CreateCommand();
ResetCounters(4);
String parameters = String.Format(CultureInfo.InvariantCulture,
"AddressLine1{0}, City, StateProvinceID, PostalCode",
MaybeParameter("AddressLine2"));
String values = String.Format(CultureInfo.InvariantCulture,
"@AddressLine1{0}, @City, @StateProvinceID, @PostalCode",
MaybeValue("AddressLine2"));
command.CommandText =
String.Format(CultureInfo.InvariantCulture,
"INSERT INTO Person.Address ({0}) VALUES ({1}); "
+ "SELECT CAST(SCOPE_IDENTITY() as Int);",
parameters, values);
MaybeAddCommandParameter("AddressLine1", command,
SqlDbType.NVarChar, 60, true, string.Empty);
MaybeAddCommandParameter("AddressLine2", command,
SqlDbType.NVarChar, 60, false, null);
MaybeAddCommandParameter("City", command,
SqlDbType.NVarChar, 30, true, string.Empty);
MaybeAddCommandParameter("StateProvinceID", command,
SqlDbType.Int, true, string.Empty);
MaybeAddCommandParameter("PostalCode", command,
SqlDbType.NVarChar, 15, true, string.Empty);
conn.Open();
contactDictionary["AddressID"] = command.ExecuteScalar().ToString();
}
}
public static void CreateEmployeeAdddress(int employeeId, int addressId)
{
using (SqlConnection conn
= new SqlConnection("context connection=true"))
{
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "INSERT INTO HumanResources.EmployeeAddress "
+ "(EmployeeID, AddressID) VALUES (@EmployeeID, @AddressID)";
cmd.Parameters.AddWithValue("@EmployeeID", employeeId);
cmd.Parameters.AddWithValue("@AddressID", addressId);
conn.Open();
cmd.ExecuteNonQuery();
}
}
public static void CreateEmployeeDepartmentHistory(int employeeId, int departmentId, int shiftId)
{
using (SqlConnection conn
= new SqlConnection("context connection=true"))
{
SqlCommand cmd = conn.CreateCommand();
cmd.CommandText = "INSERT INTO HumanResources.EmployeeDepartmentHistory "
+ "(EmployeeID, DepartmentID, ShiftID, StartDate) VALUES "
+ "(@EmployeeID, @DepartmentID, @ShiftID, @StartDate)";
cmd.Parameters.AddWithValue("@EmployeeID", employeeId);
cmd.Parameters.AddWithValue("@DepartmentID", departmentId);
cmd.Parameters.AddWithValue("@ShiftID", shiftId);
cmd.Parameters.AddWithValue("@StartDate", DateTime.Now);
conn.Open();
cmd.ExecuteNonQuery();
}
}
}
/// <summary>
///Used to indicate when parsing the xml document for creating a contact is
///not in the proper form.
/// </summary>
[Serializable]
public class AWUtilitiesContactParseException : Exception
{
private String expected = "Unknown";
private String actual = "Unknown";
public String Expected
{
get
{
return expected;
}
set
{
expected = value;
}
}
public String Actual
{
get
{
return actual;
}
set
{
actual = value;
}
}
public AWUtilitiesContactParseException()
{
}
public AWUtilitiesContactParseException(String message)
: base(message)
{
}
public AWUtilitiesContactParseException(string message, Exception innerException)
: base(message, innerException)
{
}
protected AWUtilitiesContactParseException(SerializationInfo info, StreamingContext context)
: base(info, context)
{
}
public AWUtilitiesContactParseException(String expected, String actual)
{
this.Expected = expected;
this.Actual = actual;
}
public override String ToString()
{
return String.Format(CultureInfo.CurrentUICulture,
"Parsing error during contact creation, expected element {0}, found element {1}.",
this.Expected, this.Actual);
}
[System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, SerializationFormatter = true)]
public override void GetObjectData(SerializationInfo info, StreamingContext context)
{
// Use the method of the base class.
base.GetObjectData(info, context);
}
}
VB.NET
Imports System
Imports System.Data
Imports System.Data.Sql
Imports System.Data.SqlClient
Imports System.Data.SqlTypes
Imports System.IO
Imports System.Xml
Imports System.Collections
Imports System.Collections.Generic
Imports System.Globalization
Imports Microsoft.SqlServer.Server
Imports Microsoft.VisualBasic
Imports System.Diagnostics
Public NotInheritable Class ContactUtils
Private Sub New()
End Sub
<Microsoft.SqlServer.Server.SqlProcedure()> _
Public Shared Sub CreateContact(ByVal contactData As SqlString, ByRef contactId As SqlInt32, ByRef customerId As SqlInt32)
' TODO: When we can pass XML from T-SQL then contactData can be a SqlXmlReader
Using sr As New StringReader(contactData.Value)
Dim reader As XmlReader = XmlReader.Create(sr)
reader.MoveToContent()
EnsureEqual(reader.LocalName, "Contact")
reader.MoveToContent()
reader.ReadStartElement()
Dim creator As ContactCreator = Nothing
Select Case reader.LocalName
Case "Individual"
creator = New IndividualCreator()
Case "Store"
creator = New StoreCreator()
Case "Vendor"
creator = New VendorCreator()
Case "Employee"
creator = New EmployeeCreator()
Case Else
End Select
If (creator IsNot Nothing) Then
reader.ReadStartElement()
reader.MoveToContent()
creator.LoadDictionary(reader)
reader.Close()
creator.Create()
contactId = creator.ContactID
customerId = creator.CustomerID
Else
contactId = -1
customerId = -1
Throw New AWUtilsContactParseException("Individual | Store | Vendor | Employee", reader.LocalName)
End If
End Using
End Sub
Public Shared Sub EnsureEqual(ByVal localName As String, ByVal desiredLocalName As String)
If localName Is Nothing Then
Throw New ArgumentNullException("localName")
End If
If Not localName.Equals(desiredLocalName) Then
Throw New AWUtilsContactParseException(desiredLocalName, localName)
End If
End Sub
End Class
<Serializable()> _
Public Class AWUtilsContactParseException
Inherits ApplicationException
Private _expected As String = "unknown"
Private _actual As String = "unknown"
Public Property Expected() As String
Get
Return _expected
End Get
Set(ByVal Value As String)
_expected = Value
End Set
End Property
Public Property Actual() As String
Get
Return _actual
End Get
Set(ByVal Value As String)
_actual = Value
End Set
End Property
Public Sub New()
End Sub
Public Sub New(ByVal expected As String, ByVal actual As String)
Me.Expected = expected
Me.Actual = actual
End Sub
Public Overrides Function ToString() As String
Return String.Format(System.Globalization.CultureInfo.InvariantCulture, _
"Parsing error during contact creation, expected element {0}, found element {1}.", _
Me.Expected, Me.Actual)
End Function
End Class
Public MustInherit Class CustomerCreator
Inherits ContactCreator
Protected Sub New()
End Sub
Public Overrides Sub Create()
MyBase.Create()
Using conn As New SqlConnection("context connection=true")
Dim command As SqlCommand = conn.CreateCommand()
If Not contactDictionary.ContainsKey("CustomerType") Then
contactDictionary("CustomerType") = "I"
End If
ResetCounters(0)
Dim parameters As String = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
"{0}{1}{2}", _
MaybeParameter("SalesPersonID"), _
MaybeParameter("TerritoryID"), _
MaybeParameter("CustomerType"))
' CustomerType is always present, but we need to get the commas right
Dim values As String = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
"{0}{1}{2}", _
MaybeValue("SalesPersonID"), _
MaybeValue("TerritoryID"), _
MaybeValue("CustomerType"))
command.CommandText = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
"INSERT INTO Sales.Customer ({0}) VALUES ({1}); SELECT CAST(SCOPE_IDENTITY() as Int);", _
parameters, values)
MaybeAddCommandParameter("SalesPersonID", command, SqlDbType.Int, False, Nothing)
MaybeAddCommandParameter("TerritoryID", command, SqlDbType.Int, False, Nothing)
MaybeAddCommandParameter("CustomerType", command, SqlDbType.NChar, 1, True, "I")
conn.Open()
Me.CustomerID = CType(command.ExecuteScalar(), Integer)
End Using
End Sub
End Class
Public MustInherit Class ContactCreator
Protected parameterCount As Integer
Protected valueCount As Integer
Protected contactDictionary As New Dictionary(Of String, String)()
Private Shared ReadOnly xmlColumns() As String = {"AdditionalContactInfo", "Demographics"}
Private Shared ReadOnly nestedColumns() As String = {"Address"}
Protected Sub New()
End Sub
Public Property ContactID() As Integer
Get
Dim val As String = String.Empty
If contactDictionary.TryGetValue("ContactID", val) Then
Return Integer.Parse(val, CultureInfo.InvariantCulture)
Else
Return -1
End If
End Get
Set(ByVal Value As Integer)
contactDictionary("ContactID") = Value.ToString(CultureInfo.InvariantCulture)
End Set
End Property
Public Property CustomerID() As Integer
Get
Dim val As String = String.Empty
If contactDictionary.TryGetValue("CustomerID", val) Then
Return Integer.Parse(val, CultureInfo.InvariantCulture)
Else
' Not every contact is for a customer. Return -1 in that case.
Return -1
End If
End Get
Set(ByVal Value As Integer)
contactDictionary("CustomerID") _
= Value.ToString(CultureInfo.InvariantCulture)
End Set
End Property
Public Sub LoadDictionary(ByVal reader As XmlReader)
While reader.IsStartElement()
Dim key As String = reader.LocalName
Dim val As String
If Array.IndexOf(xmlColumns, key) > -1 Then
val = reader.ReadInnerXml()
ElseIf Array.IndexOf(nestedColumns, key) > -1 Then
reader.ReadStartElement()
LoadDictionary(reader)
reader.ReadEndElement()
GoTo ContinueWhile1
Else
val = reader.ReadElementString()
End If
contactDictionary.Add(key, val)
ContinueWhile1:
End While
End Sub
Protected Sub ResetCounters(ByVal valueForReset As Integer)
parameterCount = valueForReset
valueCount = valueForReset
End Sub
Public Function MaybeParameter(ByVal name As String) As String
If contactDictionary.ContainsKey(name) Then
parameterCount = parameterCount + 1
If parameterCount = 1 Then
Return name
Else
Return ", " & name
End If
Else
Return String.Empty
End If
End Function
Public Function MaybeValue(ByVal name As String) As String
If contactDictionary.ContainsKey(name) Then
valueCount = valueCount + 1
If valueCount = 1 Then
Return "@" & name
Else
Return ", @" & name
End If
Else
Return String.Empty
End If
End Function
Public Shared Function TypeConvert(ByVal valueToConvert As String, ByVal parameterType As SqlDbType) As Object
If valueToConvert Is Nothing Then
Throw New ArgumentNullException("valueToConvert")
End If
Select Case parameterType
Case SqlDbType.BigInt
Return Int64.Parse(valueToConvert, CultureInfo.InvariantCulture)
Case SqlDbType.Int
Return Integer.Parse(valueToConvert, CultureInfo.InvariantCulture)
Case SqlDbType.SmallInt
Return Int16.Parse(valueToConvert, CultureInfo.InvariantCulture)
Case SqlDbType.TinyInt
Return Byte.Parse(valueToConvert, CultureInfo.InvariantCulture)
Case SqlDbType.Bit
If valueToConvert.Equals("1") OrElse valueToConvert.Equals("true") Then
Return 1
Else
Return 0
End If
Case SqlDbType.NVarChar, SqlDbType.VarChar, SqlDbType.NChar, SqlDbType.NText, SqlDbType.Text, SqlDbType.Char, SqlDbType.Xml
Return valueToConvert
Case SqlDbType.DateTime
Return DateTime.Parse(valueToConvert, CultureInfo.InvariantCulture)
Case SqlDbType.Money
Return Decimal.Parse(valueToConvert, CultureInfo.InvariantCulture)
Case Else
Return "unknown conversion"
End Select
End Function
Public Overloads Sub MaybeAddCommandParameter(ByVal keyName As String, ByVal paramName As String, ByVal command As SqlCommand, ByVal parameterType As SqlDbType, ByVal isRequired As Boolean, ByVal defaultValue As String)
If isRequired OrElse contactDictionary.ContainsKey(keyName) Then
Dim param As New SqlParameter("@" & paramName, parameterType)
Dim val As String
If (contactDictionary.ContainsKey(keyName)) Then
val = contactDictionary(keyName)
Else
val = defaultValue
End If
param.Value = TypeConvert(val, parameterType)
command.Parameters.Add(param)
End If
End Sub
Public Overloads Sub MaybeAddCommandParameter(ByVal name As String, ByVal command As SqlCommand, ByVal parameterType As SqlDbType, ByVal isRequired As Boolean, ByVal defaultValue As String)
MaybeAddCommandParameter(name, name, command, parameterType, isRequired, defaultValue)
End Sub
Public Overloads Sub MaybeAddCommandParameter(ByVal name As String, ByVal command As SqlCommand, ByVal parameterType As SqlDbType, ByVal size As Integer, ByVal isRequired As Boolean, ByVal defaultValue As String)
If isRequired OrElse contactDictionary.ContainsKey(name) Then
MaybeAddCommandParameter(name, command, parameterType, isRequired, defaultValue)
command.Parameters(command.Parameters.Count - 1).Size = size
End If
End Sub
Public Overloads Sub MaybeAddCommandParameter(ByVal keyName As String, ByVal paramName As String, ByVal command As SqlCommand, ByVal parameterType As SqlDbType, ByVal size As Integer, ByVal isRequired As Boolean, ByVal defaultValue As String)
If isRequired OrElse contactDictionary.ContainsKey(keyName) Then
MaybeAddCommandParameter(keyName, paramName, command, parameterType, isRequired, defaultValue)
command.Parameters(command.Parameters.Count - 1).Size = size
End If
End Sub
Public Overridable Sub Create()
Using conn As New SqlConnection("context connection=true")
Dim command As SqlCommand = conn.CreateCommand()
ResetCounters(1)
Dim parameters As String = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
"NameStyle{0}, FirstName{1}, LastName{2}{3}{4}{5}, PasswordHash, PasswordSalt{6}", _
MaybeParameter("Title"), MaybeParameter("MiddleName"), _
MaybeParameter("Suffix"), MaybeParameter("EmailAddress"), _
MaybeParameter("EmailPromotion"), MaybeParameter("Phone"), _
MaybeParameter("AdditionalContactInfo"))
Dim values As String = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
"@NameStyle{0}, @FirstName{1}, @LastName{2}{3}{4}{5}, @PasswordHash, @PasswordSalt{6}", _
MaybeValue("Title"), MaybeValue("MiddleName"), MaybeValue("Suffix"), _
MaybeValue("EmailAddress"), MaybeValue("EmailPromotion"), _
MaybeValue("Phone"), MaybeValue("AdditionalContactInfo"))
Dim formatText As String = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
"INSERT INTO Person.Contact ({0}) VALUES ({1}); SELECT CAST(SCOPE_IDENTITY() AS Int);", _
parameters, values)
command.CommandText = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
formatText)
MaybeAddCommandParameter("NameStyle", command, SqlDbType.Bit, True, "0")
MaybeAddCommandParameter("Title", command, SqlDbType.NVarChar, 8, False, Nothing)
MaybeAddCommandParameter("FirstName", command, SqlDbType.NVarChar, 50, True, String.Empty)
MaybeAddCommandParameter("MiddleName", command, SqlDbType.NVarChar, 50, False, Nothing)
MaybeAddCommandParameter("LastName", command, SqlDbType.NVarChar, 50, True, String.Empty)
MaybeAddCommandParameter("Suffix", command, SqlDbType.NVarChar, 10, False, Nothing)
MaybeAddCommandParameter("EmailAddress", command, SqlDbType.NVarChar, 50, True, String.Empty)
MaybeAddCommandParameter("EmailPromotion", command, SqlDbType.Int, False, Nothing)
MaybeAddCommandParameter("Phone", command, SqlDbType.NVarChar, 25, False, Nothing)
MaybeAddCommandParameter("PasswordHash", command, SqlDbType.VarChar, 40, True, String.Empty)
MaybeAddCommandParameter("PasswordSalt", command, SqlDbType.VarChar, 10, True, String.Empty)
MaybeAddCommandParameter("AdditionalContactInfo", command, SqlDbType.Xml, False, Nothing)
conn.Open()
Me.ContactID = CType(command.ExecuteScalar(), Integer)
Dim st As New StackTrace(True)
End Using
End Sub
End Class
Public Class EmployeeCreator
Inherits ContactCreator
Public Overrides Sub Create()
MyBase.Create()
CreateAddress()
Dim employeeID As Integer = -1
Using conn As New SqlConnection("context connection=true")
Dim command As SqlCommand = conn.CreateCommand()
ResetCounters(3)
Dim parameters As String = String.Format(CultureInfo.InvariantCulture, _
"NationalIDNumber, ContactID, LoginID{0}, Title, BirthDate, MaritalStatus, Gender, HireDate, SalariedFlag, VacationHours, SickLeaveHours", _
MaybeParameter("ManagerID"))
Dim values As String = String.Format(CultureInfo.InvariantCulture, _
"@NationalIDNumber, @ContactID, @LoginID{0}, @Title, @BirthDate, @MaritalStatus, @Gender, @HireDate, @SalariedFlag, @VacationHours, @SickLeaveHours", _
MaybeValue("ManagerID"))
command.CommandText = String.Format(CultureInfo.InvariantCulture, _
"INSERT INTO HumanResources.Employee ({0}) VALUES ({1}); SELECT CAST(SCOPE_IDENTITY() as Int);", _
parameters, values)
MaybeAddCommandParameter("NationalIDNumber", command, SqlDbType.NVarChar, 15, True, String.Empty)
MaybeAddCommandParameter("ContactID", command, SqlDbType.Int, True, String.Empty)
MaybeAddCommandParameter("LoginID", command, SqlDbType.NVarChar, 256, True, String.Empty)
MaybeAddCommandParameter("ManagerID", command, SqlDbType.Int, False, Nothing)
MaybeAddCommandParameter("JobTitle", "Title", command, SqlDbType.NVarChar, 50, True, String.Empty)
MaybeAddCommandParameter("BirthDate", command, SqlDbType.DateTime, True, String.Empty)
MaybeAddCommandParameter("MaritalStatus", command, SqlDbType.NChar, 1, True, String.Empty)
MaybeAddCommandParameter("Gender", command, SqlDbType.NChar, 1, True, String.Empty)
MaybeAddCommandParameter("HireDate", command, SqlDbType.DateTime, True, String.Empty)
MaybeAddCommandParameter("SalariedFlag", command, SqlDbType.Bit, True, "1")
MaybeAddCommandParameter("VacationHours", command, SqlDbType.SmallInt, True, "0")
MaybeAddCommandParameter("SickLeaveHours", command, SqlDbType.SmallInt, True, "0")
conn.Open()
employeeID = CInt(command.ExecuteScalar())
End Using
CreateEmployeeAdddress(employeeID, Integer.Parse(contactDictionary("AddressID"), _
System.Globalization.CultureInfo.InvariantCulture))
CreateEmployeeDepartmentHistory(employeeID, Integer.Parse( _
contactDictionary("DepartmentID"), _
System.Globalization.CultureInfo.InvariantCulture), _
Integer.Parse(contactDictionary("ShiftID"), _
System.Globalization.CultureInfo.InvariantCulture))
End Sub
Public Sub CreateAddress()
Using conn As New SqlConnection("context connection=true")
Dim command As SqlCommand = conn.CreateCommand()
ResetCounters(4)
Dim parameters As String = String.Format(CultureInfo.InvariantCulture, _
"AddressLine1{0}, City, StateProvinceID, PostalCode", _
MaybeParameter("AddressLine2"))
Dim values As String = String.Format(CultureInfo.InvariantCulture, _
"@AddressLine1{0}, @City, @StateProvinceID, @PostalCode", _
MaybeValue("AddressLine2"))
command.CommandText = String.Format(CultureInfo.InvariantCulture, _
"INSERT INTO Person.Address ({0}) VALUES ({1}); SELECT CAST(SCOPE_IDENTITY() as Int);", _
parameters, values)
MaybeAddCommandParameter("AddressLine1", command, SqlDbType.NVarChar, 60, True, String.Empty)
MaybeAddCommandParameter("AddressLine2", command, SqlDbType.NVarChar, 60, False, Nothing)
MaybeAddCommandParameter("City", command, SqlDbType.NVarChar, 30, True, String.Empty)
MaybeAddCommandParameter("StateProvinceID", command, SqlDbType.Int, True, String.Empty)
MaybeAddCommandParameter("PostalCode", command, SqlDbType.NVarChar, 15, True, String.Empty)
conn.Open()
contactDictionary("AddressID") = command.ExecuteScalar().ToString()
End Using
End Sub
Public Shared Sub CreateEmployeeAdddress(ByVal employeeID As Integer, ByVal addressID As Integer)
Using conn As New SqlConnection("context connection=true")
Dim cmd As SqlCommand = conn.CreateCommand()
cmd.CommandText = "INSERT INTO HumanResources.EmployeeAddress " + "(EmployeeID, AddressID) VALUES (@EmployeeID, @AddressID)"
cmd.Parameters.AddWithValue("@EmployeeID", employeeID)
cmd.Parameters.AddWithValue("@AddressID", addressID)
conn.Open()
cmd.ExecuteNonQuery()
End Using
End Sub
Public Shared Sub CreateEmployeeDepartmentHistory(ByVal employeeID As Integer, ByVal departmentID As Integer, ByVal shiftID As Integer)
Using conn As New SqlConnection("context connection=true")
Dim cmd As SqlCommand = conn.CreateCommand()
cmd.CommandText = "INSERT INTO HumanResources.EmployeeDepartmentHistory " + "(EmployeeID, DepartmentID, ShiftID, StartDate) VALUES " + "(@EmployeeID, @DepartmentID, @ShiftID, @StartDate)"
cmd.Parameters.AddWithValue("@EmployeeID", employeeID)
cmd.Parameters.AddWithValue("@DepartmentID", departmentID)
cmd.Parameters.AddWithValue("@ShiftID", shiftID)
cmd.Parameters.AddWithValue("@StartDate", DateTime.Now)
conn.Open()
cmd.ExecuteNonQuery()
End Using
End Sub
End Class
Public Class IndividualCreator
Inherits CustomerCreator
Public Overrides Sub Create()
MyBase.Create()
Using conn As New SqlConnection("context connection=true")
Dim command As SqlCommand = conn.CreateCommand()
ResetCounters(2)
Dim parameters As String = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
"CustomerID, ContactID{0}", MaybeParameter("Demographics"))
Dim values As String = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
"@CustomerID, @ContactID{0}", MaybeValue("Demographics"))
command.CommandText = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
"INSERT INTO Sales.Individual ({0}) VALUES ({1});", parameters, values)
MaybeAddCommandParameter("CustomerID", command, SqlDbType.Int, True, String.Empty)
MaybeAddCommandParameter("ContactID", command, SqlDbType.Int, True, String.Empty)
MaybeAddCommandParameter("Demographics", command, SqlDbType.Xml, False, Nothing)
conn.Open()
command.ExecuteNonQuery()
End Using
End Sub
End Class
Public Class StoreCreator
Inherits ContactCreator
Public Overrides Sub Create()
MyBase.Create()
Using conn As New SqlConnection("context connection=true")
Dim command As SqlCommand = conn.CreateCommand()
command.CommandText = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
"INSERT INTO Sales.StoreContact (CustomerID, ContactID, ContactTypeID) VALUES (@CustomerID, @ContactID, @ContactTypeID);")
MaybeAddCommandParameter("CustomerID", command, SqlDbType.Int, True, String.Empty)
MaybeAddCommandParameter("ContactID", command, SqlDbType.Int, True, String.Empty)
MaybeAddCommandParameter("ContactTypeID", command, SqlDbType.TinyInt, True, String.Empty)
conn.Open()
command.ExecuteNonQuery()
End Using
End Sub
End Class
Public Class VendorCreator
Inherits ContactCreator
Public Overrides Sub Create()
MyBase.Create()
Using conn As New SqlConnection("context connection=true")
Dim command As SqlCommand = conn.CreateCommand()
Dim parameters As String = "VendorID, ContactID, ContactTypeID"
Dim values As String = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
"@VendorID, @ContactID, @ContactTypeID")
command.CommandText = String.Format( _
System.Globalization.CultureInfo.InvariantCulture, _
"INSERT INTO Purchasing.VendorContact ({0}) VALUES ({1});", _
parameters, values)
MaybeAddCommandParameter("VendorID", command, SqlDbType.Int, True, String.Empty)
MaybeAddCommandParameter("ContactID", command, SqlDbType.Int, True, String.Empty)
MaybeAddCommandParameter("ContactTypeID", command, SqlDbType.TinyInt, True, String.Empty)
conn.Open()
command.ExecuteNonQuery()
End Using
End Sub
End Class
Di seguito è illustrato lo script di installazione Transact-SQL (Install.sql) che consente la distribuzione dell'assembly e la creazione della stored procedure nel database.
use AdventureWorks
GO
DECLARE @contactID Int;
DECLARE @customerID Int;
EXEC dbo.usp_CreateContact N'<Contact xmlns="https://schemas.microsoft.com/sqlserver/2004/07/adventure-works/ContactData"><Individual>
<Title>Dr.</Title>
<FirstName>Kim</FirstName>
<LastName>Smith</LastName>
<EmailAddress>kim@proseware.com</EmailAddress>
<PasswordHash>F1AF7A6028F2FEA29292C09603F1C209BB84B518</PasswordHash>
<PasswordSalt>2Hdr7Jc=</PasswordSalt>
<Demographics>
<IndividualSurvey xmlns="https://schemas.microsoft.com/sqlserver/2004/07/adventure-works/IndividualSurvey">
<TotalChildren>2</TotalChildren>
<NumberChildrenAtHome>1</NumberChildrenAtHome>
</IndividualSurvey>
</Demographics>
</Individual>
</Contact>', @contactID OUTPUT, @customerID OUTPUT;
PRINT 'Individual Contact ID = ' + CAST(@contactID as varchar(10));
PRINT 'Individual Customer ID = ' + CAST(@customerID as varchar(10));
EXEC dbo.usp_CreateContact N'
<Contact xmlns="https://schemas.microsoft.com/sqlserver/2004/07/adventure-works/ContactData"><Store>
<FirstName>Catherine</FirstName>
<LastName>Smith</LastName>
<EmailAddress>catherine@proseware.com</EmailAddress>
<PasswordHash>D584F3AC519BA083DD814023495F267E6A613F7C</PasswordHash>
<PasswordSalt>bseDC8g=</PasswordSalt>
<CustomerID>391</CustomerID>
<ContactTypeID>14</ContactTypeID>
</Store>
</Contact>', @contactID OUTPUT, @customerID OUTPUT;
PRINT 'Store Contact ID = ' + CAST(@contactID as varchar(10));
PRINT 'Store Customer ID = ' + CAST(@customerID as varchar(10));
EXEC dbo.usp_CreateContact N'
<Contact xmlns="https://schemas.microsoft.com/sqlserver/2004/07/adventure-works/ContactData"><Vendor>
<FirstName>Amy</FirstName>
<LastName>Smith</LastName>
<EmailAddress>amy@proseware.com</EmailAddress>
<PasswordHash>00753C6EEC3659B4A5C30AC048F258C610EBE248</PasswordHash>
<PasswordSalt>wyUl4hA=</PasswordSalt>
<VendorID>7</VendorID>
<ContactTypeID>17</ContactTypeID>
</Vendor>
</Contact>', @contactID OUTPUT, @customerID OUTPUT;
PRINT 'Vendor Contact ID = ' + CAST(@contactID as varchar(10));
PRINT 'Vendor Customer ID = ' + CAST(@customerID as varchar(10));
EXEC dbo.usp_CreateContact N'
<Contact xmlns="https://schemas.microsoft.com/sqlserver/2004/07/adventure-works/ContactData"><Employee>
<FirstName>Ramona</FirstName>
<LastName>Smith</LastName>
<EmailAddress>ramona@proseware.com</EmailAddress>
<PasswordHash>4BE320740C7461F79A3CE3E177EA03A9FE3DDD26</PasswordHash>
<PasswordSalt>Pfz9Qzg=</PasswordSalt>
<NationalIDNumber>739117</NationalIDNumber>
<LoginID>ramonas</LoginID>
<DepartmentID>11</DepartmentID>
<ManagerID>42</ManagerID>
<ShiftID>1</ShiftID>
<JobTitle>Information System Specialist</JobTitle>
<Address>
<AddressLine1>3 Penny Lane</AddressLine1>
<AddressLine2>Apartment 2A</AddressLine2>
<City>Seattle</City>
<StateProvinceID>79</StateProvinceID>
<PostalCode>98121</PostalCode>
</Address>
<BirthDate>1972-04-01T03:29:17-08:00</BirthDate>
<MaritalStatus>M</MaritalStatus>
<Gender>F</Gender>
<HireDate>1999-08-07T13:35:17-08:00</HireDate>
<SalariedFlag>true</SalariedFlag>
<VacationHours>12</VacationHours>
<SickLeaveHours>8</SickLeaveHours>
</Employee>
</Contact>', @contactID OUTPUT, @customerID OUTPUT;
PRINT 'Employee Contact ID = ' + CAST(@contactID as varchar(10));
PRINT 'Employee Customer ID = ' + CAST(@customerID as varchar(10));
Il codice Transact-SQL seguente consente di rimuovere l'assembly, la stored procedure e i dati inseriti dal database.
USE AdventureWorks
GO
--Individual
DECLARE @ContactID int;
DECLARE @customerID int;
SELECT @ContactID = co.ContactID, @customerID = c.CustomerID
FROM Sales.Customer AS c
JOIN Sales.Individual AS i on c.CustomerID = i.CustomerID
JOIN Person.Contact AS co on i.ContactID = co.ContactID
WHERE co.EmailAddress='kim@proseware.com';
DELETE Sales.Individual WHERE ContactID = @ContactID;
DELETE Sales.Customer WHERE CustomerID = @customerID;
DELETE Person.Contact WHERE ContactID = @ContactID;
GO
-- Store Contact
DECLARE @ContactID int;
SELECT @ContactID = co.ContactID
FROM Person.Contact AS co
WHERE co.EmailAddress='catherine@proseware.com';
DELETE Sales.StoreContact WHERE ContactID = @ContactID;
DELETE Person.Contact WHERE ContactID = @ContactID;
GO
-- Vendor Contact
DECLARE @ContactID int;
SELECT @ContactID = co.ContactID FROM Person.Contact AS co
WHERE co.EmailAddress='amy@proseware.com';
DELETE Purchasing.VendorContact WHERE ContactID = @ContactID;
DELETE Person.Contact WHERE ContactID = @ContactID;
GO
-- Employee Contact
DECLARE @ContactID int;
DECLARE @EmployeeID int;
DECLARE @AddressID int;
SELECT @ContactID = co.ContactID
FROM Person.Contact AS co
WHERE co.EmailAddress='ramona@proseware.com';
SELECT @EmployeeID = e.EmployeeID
FROM HumanResources.Employee AS e
WHERE ContactID = @ContactID;
SELECT @AddressID = ea.AddressID
FROM HumanResources.EmployeeAddress AS ea
WHERE EmployeeID = @EmployeeID;
DELETE HumanResources.EmployeeAddress
WHERE EmployeeID = @EmployeeID AND AddressID = @AddressID;
DELETE Person.Address
WHERE AddressID = @AddressID;
DELETE HumanResources.EmployeeDepartmentHistory
WHERE EmployeeID = @EmployeeID;
DISABLE TRIGGER [HumanResources].[dEmployee] ON [HumanResources].[Employee];
DELETE HumanResources.Employee WHERE ContactID = @ContactID;
ENABLE TRIGGER [HumanResources].[dEmployee] ON [HumanResources].[Employee];
DELETE Person.Contact WHERE ContactID = @ContactID;
GO
IF EXISTS (SELECT * FROM sys.xml_schema_collections WHERE [name] = N'ContactDataSchemaCollection')
DROP XML SCHEMA COLLECTION Person.ContactDataSchemaCollection;
GO
IF EXISTS (SELECT * FROM sys.procedures WHERE [name] = N'usp_CreateContact')
DROP PROCEDURE [dbo].[usp_CreateContact];
GO
IF EXISTS (SELECT * FROM sys.assemblies WHERE [name] = N'Contacts')
DROP ASSEMBLY Contacts;
GO
Vedere anche
Concetti
Scenari di utilizzo ed esempi per l'integrazione con CLR (Common Language Runtime)