Edit

Workspace.OpenDatabase method (DAO)

  • Article

Applies to: Access 2013, Office 2013

Opens a specified database in a Workspace object and returns a reference to the Database object that represents it.

Syntax

expression .OpenDatabase(Name, Options, ReadOnly, Connect)

expression A variable that represents a Workspace object.

Parameters

Name

Required/optional

Data type

Description

Name

Required

String

the name of an existing Microsoft Access database engine database file, or the data source name (DSN) of an ODBC data source. See the Name property for more information about setting this value.

Options

Optional

Variant

Sets various options for the database, as specified in Remarks.

ReadOnly

Optional

Variant

True if you want to open the database with read-only access, or False (default) if you want to open the database with read/write access.

Connect

Optional

Variant

Specifies various connection information, including passwords.

Return value

Database

Remarks

You can use the following values for the options argument.

Setting

Description

True

Opens the database in exclusive mode.

False

(Default) Opens the database in shared mode.

When you open a database, it is automatically added to the Databases collection.

Some considerations apply when you use dbname:

  • If it refers to a database that is already open for access by another user, an error occurs.

  • If it doesn't refer to an existing database or valid ODBC data source name, an error occurs.

  • If it's a zero-length string ("") and connect is "ODBC;" , a dialog box listing all registered ODBC data source names is displayed so the user can select a database.

To close a database, and thus remove the Database object from the Databases collection, use the Close method on the object.

Note

When you access a Microsoft access database engine-connected ODBC data source, you can improve your application's performance by opening a Database object connected to the ODBC data source, rather than by linking individual TableDef objects to specific tables in the ODBC data source.

Example

This example uses the OpenDatabase method to open one Microsoft Access database and two Microsoft Access database engine-connected ODBC databases.

Sub OpenDatabaseX() 
 
 Dim wrkAcc As Workspace 
 Dim dbsNorthwind As Database 
 Dim dbsPubs As Database 
 Dim dbsPubs2 As Database 
 Dim dbsLoop As Database 
 Dim prpLoop As Property 
 
 ' Create Microsoft Access Workspace object. 
 Set wrkAcc = CreateWorkspace("", "admin", "", dbUseJet) 
 
 ' Open Database object from saved Microsoft Access database 
 ' for exclusive use. 
 MsgBox "Opening Northwind..." 
 Set dbsNorthwind = wrkAcc.OpenDatabase("Northwind.mdb", _ 
 True) 
 
 ' Open read-only Database object based on information in 
 ' the connect string. 
 MsgBox "Opening pubs..." 
 
 ' Note: The DSN referenced below must be set to 
 ' use Microsoft Windows NT Authentication Mode to 
 ' authorize user access to the Microsoft SQL Server. 
 Set dbsPubs = wrkAcc.OpenDatabase("Publishers", _ 
 dbDriverNoPrompt, True, _ 
 "ODBC;DATABASE=pubs;DSN=Publishers") 
 
 ' Open read-only Database object by entering only the 
 ' missing information in the ODBC Driver Manager dialog 
 ' box. 
 MsgBox "Opening second copy of pubs..." 
 Set dbsPubs2 = wrkAcc.OpenDatabase("Publishers", _ 
 dbDriverCompleteRequired, True, _ 
 "ODBC;DATABASE=pubs;DSN=Publishers;") 
 
 ' Enumerate the Databases collection. 
 For Each dbsLoop In wrkAcc.Databases 
 Debug.Print "Database properties for " & _ 
 dbsLoop.Name & ":" 
 
 On Error Resume Next 
 ' Enumerate the Properties collection of each Database 
 ' object. 
 For Each prpLoop In dbsLoop.Properties 
 If prpLoop.Name = "Connection" Then 
 ' Property actually returns a Connection object. 
 Debug.Print " Connection[.Name] = " & _ 
 dbsLoop.Connection.Name 
 Else 
 Debug.Print " " & prpLoop.Name & " = " & _ 
 prpLoop 
 End If 
 Next prpLoop 
 On Error GoTo 0 
 
 Next dbsLoop 
 
 dbsNorthwind.Close 
 dbsPubs.Close 
 dbsPubs2.Close 
 wrkAcc.Close 
 
End Sub