Why do I need to update SQL Server statistics?

Why do I need to update SQL Server statistics?

Introduction A question we are often asked by both our Virtual-DBA and Consulting customers is: Why do I have to update statistics if auto-update statistics is turned on?  The short answer is that your data changes, and even if you have auto-update statistics...

ORA-01502 Unusable Indexes

Encountering the ORA-01502 error due to unusable indexes in Oracle can be challenging.  A client called with an issue running a script from a 3rd party vendor. He was getting Oracle error ORA-01502 while running the supplied script. The ORA-01502 is basically stating...

Oracle Database Corruption ORA-00600

The other day our monitoring system had thrown a couple of alerts for a client. It was reporting there were errors in the client’s alertlog. I logged in and checked the alertlog and sure enough there were multiple dreadred ORA-00600 errors being reported in the...