In Microsoft Skype for Business Server 2019 or Skype for Business Server 2015, when you try to install new databases by using the Topology Builder or by running the Install-CsDatabase cmdlet, you receive the following error message:
InstallDatabaseInternalFailure: An internal error has occurred while trying to create or update the database.Error: Error executing batch.Details: Error creating procedure DbpMaintainDatabaseIndices: sql error code = 137, error message = Must declare the scalar variable "@Maxdop"., line number = LineNumber sql error code = 137, error message = Must declare the scalar variable "@Maxdop"., line number = LineNumber sql error code = 137, error message = Must declare the scalar variable "@Maxdop"., line number = LineNumber sql error code = 137, error message = Must declare the scalar variable "@Maxdop"., line number = LineNumber