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Error while restoring a backup

Article ID: 626
Last updated: 05 Oct, 2018
Applies from Application Suite 2017.1.1

Description:

When trying to restore a backup into an Application Suite 2017.Winter.1 or newer, the operation could fail.

Logs contained in BillyBlues.Core.Wizard folder show the following error:

System.Data.SqlClient.SqlException : The EXECUTE permission was denied on the object 'sp_detach_db', database 'mssqlsystemresource', schema 'sys'.
Stacktrace
   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   at System.Data.SqlClient.SqlDataReader.get_MetaData()
   at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
   at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
   at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
   at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
   at System.Data.Common.DbDataAdapter.Fill(DataTable[] dataTables, Int32 startRecord, Int32 maxRecords, IDbCommand command, CommandBehavior behavior)
   at System.Data.Common.DbDataAdapter.Fill(DataTable dataTable)
   at ApplicationSuite.Data.Database.QueryExecutor.ExecuteQuery(String sql, SqlParameter[] parameters, TimeSpan timeout)
   at ApplicationSuite.Data.Database.QueryExecutor.ExecuteQuery(String sql, SqlParameter[] parameters)
   at ApplicationSuite.Data.Database.QueryExecutor.ExecuteQuery(String sql)
   at ApplicationSuite.Data.Database.DatabaseSchema.Rename(String newName)}

Cause:

This error happens because the user used to connect to SQL Server is missing a required permission, i.e. the permission to execute the sp_detach_db stored procedure.

Since SQL Server 2008 this permission is granted by default (on a fresh install) to every user that can connect to the SQL Server instance, but earlier versions could have different default values (and upgrading an older version of SQL Server to a newer one keeps the old default settings).

To verify that the user has this permission you can log into SQL Server with that same user and run this script:

SELECT 
    'Can execute ''sp_detach_db''' AS [Requirement],
    CASE WHEN HAS_PERMS_BY_NAME('sp_detach_db', 'OBJECT', 'EXECUTE') = 1 THEN 'OK' ELSE 'MISSING' END AS [Status]

Solution:

Grant the user the permission to execute the sp_detach_db stored procedure.

As an example you can run the following script as a SQL administrator, and replacing imagicleUser with the actual username:

USE [master]
CREATE USER [imagicleUser] FOR LOGIN [imagicleUser]
GRANT EXECUTE ON sp_detach_db TO [imagicleUser]

Article ID: 626
Last updated: 05 Oct, 2018
Revision: 2
Views: 87
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