Hi ,
so if the database Analyzer is showing only a few warnings the system configuration is ok. But you are talking abotu a join which does not perform best. Sio first - run update Statistics on the tables involved into the join. Update Statistics table and update statistic column on all indexed columns.
Then please insert the explain plan of the join -> only write the key word explain before the Join Statement. Send the SQL of the join as well. Add the table definition of the tables involved into the join and the index definition of tables.
If you want to learn more about the MaxDb Optimizer please check our Expert Session:
- Session 16: SAP MaxDB SQL Query Optimization (Part 1) -> Single Table Optimization
- Session 16: SAP MaxDB SQL Query Optimization (Part 2) -> Join Optimization
There are slides avaialble and recording of the sessions.
You'll find the sessions using the following link: http://maxdb.sap.com/training/
Regards, Christiane
