SYMPTOM:
When connecting to a 2-tier project source in Strategy Desktop 9.x or Developer 10.x, following error message appears:

Metadata Server cannot connect to metadata repository. Database error: Execute Query failed.Error type: Odbc error. Odbc operation attempted: SQLExecDirect. Invalid object name 'DSSMDSYSPROP'.. CAUSE: This may be caused by missing metadata table prefix at the project source level. ACTION: Add the table prefix at the project source level:
