Attached database failed for sever "blah". (Microsoft.SqlServer.Smo)

Question

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Attach database failed for Server 'DENR-HP'.  (Microsoft.SqlServer.Smo)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=10.50.1600.1+((KJ_RTM).100402-1539+)&EvtSrc=Microsoft.SqlServer.Management.Smo.ExceptionTemplates.FailedOperationExceptionText&EvtID=Attach+database+Server&LinkId=20476
Program Location:
   at Microsoft.SqlServer.Management.Smo.Server.AttachDatabase(String name, StringCollection files)
   at Microsoft.SqlServer.Management.SqlManagerUI.AttachDatabaseData.PrimaryFile.Attach()
   at Microsoft.SqlServer.Management.SqlManagerUI.AttachDatabase.SendDataToServer()
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An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)
Program Location:
   at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(String sqlCommand, ExecutionTypes executionType)
   at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(StringCollection sqlCommands, ExecutionTypes executionType)
   at Microsoft.SqlServer.Management.Smo.ExecutionManager.ExecuteNonQuery(StringCollection queries)
   at Microsoft.SqlServer.Management.Smo.Server.AttachDatabaseWorker(String name, StringCollection files, String owner, AttachOptions attachOptions)
   at Microsoft.SqlServer.Management.Smo.Server.AttachDatabase(String name, StringCollection files)
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The database 'PlanningDB' cannot be opened because it is version 655. This server supports version 611 and earlier. A downgrade path is not supported.
Could not open new database 'PlanningDB'. CREATE DATABASE is aborted. (.Net SqlClient Data Provider)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=948&LinkId=20476
Server Name: (local)
Error Number: 948
Severity: 20
State: 1
Line Number: 1
Program Location:
   at Microsoft.SqlServer.Management.Common.ConnectionManager.ExecuteTSql(ExecuteTSqlAction action, Object execObject, DataSet fillDataSet, Boolean catchException)
   at Microsoft.SqlServer.Management.Common.ConnectionManager.ExecuteTSql(ExecuteTSqlAction action, Object execObject, DataSet fillDataSet, Boolean catchException)
   at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(String sqlCommand, ExecutionTypes executionType)

Answer 1

Hi,
As Olaf’s post, you cannot restore or attach a database which is created from a higher version of SQL Server to a lower version of SQL Server.
However, there are some ways which can help you to move a database to a lower version of SQL Server. I recommend you to use Generate Scripts Wizard of SQL Server Management Studio (SSMS), you can script all the database objects in SQL Server 2008, then run
the SQL scripts in SQL Server 2005, for more details, you can follow the steps in this blog:
How to migrate a SQL Server database to a lower version. Also you can try to use the Import and Export Wizard to move database from SQL Server 2008 to SQL Server 2005,for more details, please review this article:
How to: Run the SQL Server Import and Export Wizard.
Thanks
Lydia Zhang