Monitoring temporary tablespace usage in Oracle is crucial for maintaining optimal database performance. Temporary tablespaces are used to store temporary data generated during various operations, such as sorting, joining, and grouping. Excessive usage of temporary tablespace can lead to performance degradation and, in severe cases, system outages.
There are several methods to check temporary tablespace usage in Oracle. One common approach is to query the V$TEMP_SPACE_USAGE view. This view provides information about the temporary tablespace usage for each active session. The following query retrieves the temporary tablespace usage for the current session: