Enqueues are shared memory structures that serialize access to database resources.(locks) They can be associated with a session or transaction. HW (high water mark) is …

When we create a database through SQL Server Management Studio version 17.3 and right click on it and click properties, we receive this error. To …

An active request represents a client- or application-centric view of I / O requests processed by the cell node. You can view active requests on …

We are able to configure some critical options set at instance level, such as MAXDOP, at the database level with Database Scoped Configurations feature of …

If you attempt to rebuild an entire index while rebuilding a partitioned index, you may receive an ORA-14086 error. [crayon-676e13cdc25ff240576197/] To solve the problem, rebuild …

What is DBCC FREEPROCCACHE in SQL Server We can reset all plans in the plan cache with DBCC FREEPROCCACHE. Thus, each stored procedure has to …

If there is a session that uses the temp tablespace you are trying to drop, the drop operation starts waiting. The drop operation is completed …

What is dbcc clondatabase in SQL Server DBCC ClonDatabase announced with SQL Server 2014 SP2. We are able to create a copy of the database …

“enq: SS – contention” wait event may occur in problems with temp tablespace usage in Oracle RAC databases. At the same time, SMON may be …

We have been able to use Control Server Permission since SQL Server 2005. You can use this permission as an alternative to sysadmin. But it …