Metodo ServerConnection.ExecuteReader (String)
Executes Transact-SQL statements that return one or multiple result sets.
Spazio dei nomi Microsoft.SqlServer.Management.Common
Assembly: Microsoft.SqlServer.ConnectionInfo (in Microsoft.SqlServer.ConnectionInfo.dll)
Sintassi
'Dichiarazione
Public Function ExecuteReader ( _
sqlCommand As String _
) As SqlDataReader
'Utilizzo
Dim instance As ServerConnection
Dim sqlCommand As String
Dim returnValue As SqlDataReader
returnValue = instance.ExecuteReader(sqlCommand)
public SqlDataReader ExecuteReader(
string sqlCommand
)
public:
SqlDataReader^ ExecuteReader(
String^ sqlCommand
)
member ExecuteReader :
sqlCommand:string -> SqlDataReader
public function ExecuteReader(
sqlCommand : String
) : SqlDataReader
Parametri
- sqlCommand
Tipo: System.String
A String value that specifies the Transact-SQL command to be executed.
Valore restituito
Tipo: System.Data.SqlClient.SqlDataReader
A SqlDataReader object value that contains one or more result sets.
Osservazioni
The SqlDataReader object is returned to let the client process the data without requiring it to read all information into memory.
Esempi
C#
ServerConnection conn = new ServerConnection();
conn.DatabaseName = "AdventureWorks2012";
SqlDataReader reader = conn.ExecuteReader("SELECT Name, CostRate FROM Production.Location");
while (reader.Read())
{
string name = (string)reader["Name"];
decimal cRate = (decimal)reader["CostRate"];
Console.WriteLine(name + "(" + cRate + ")");
}
reader.Close();
PowerShell
$conn = new-object Microsoft.SqlServer.Management.Common.ServerConnection
$conn.DatabaseName = "AdventureWorks2012"
$reader = $conn.ExecuteReader("SELECT Name, CostRate FROM Production.Location")
while ($reader.Read())
{
$name = $reader.GetValue(0);
$cRate = $reader.GetValue(1);
Write-Host $name,"(",$cRate,")"
}
$reader.Close()