This documentation is archived and is not being maintained.

DbProviderServices.DbDatabaseExists Method

Returns a value indicating whether a given database exists on the server and whether schema objects contained in the storeItemCollection have been created.

Namespace:  System.Data.Common
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

protected virtual bool DbDatabaseExists(
	DbConnection connection,
	Nullable<int> commandTimeout,
	StoreItemCollection storeItemCollection


Type: System.Data.Common.DbConnection
Connection to a database whose existence is verified by this method.
Type: System.Nullable<Int32>
Execution timeout for any commands needed to determine the existence of the database.
Type: System.Data.Metadata.Edm.StoreItemCollection
The structure of the database whose existence is determined by this method.

Return Value

Type: System.Boolean
true if the database indicated by the connection and the storeItemCollection parameter exists.

If the provider can deduce the database only based on the connection, it does not need to additionally verify all elements of the storeItemCollection.

Provider writers will override this protected virtual method with an implementation for your target database. Provider writers can verify that every table and foreign key constraint is found.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.