An upgrade of the Symantec Endpoint Protection Manager (SEPM) to version 12.1 RU2 fails with the error:
THREAD 12 SEVERE: java.sql.SQLException: Failed to upgrade schema: java.sql.SQLException: java.sql.SQLException: Must declare the scalar variable "@tooOldDef".
The SQL server is using an unsupported case-sensitive SQL Server Collation.
See article TECH167300 for moving the SEPM database to a SQL Server instance with a supported collation.