rdbms

Identifying and Resolving Blocking Sessions in Oracle Database Blocking sessions in an Oracle database occur when one session holds a lock on a resource that other sessions need, causing them to wait. This can lead to performance bottlenecks and user complaints. Identifying and resolving these sessions is a critical task for database administrators. 1. Identifying Blocking Sessions Oracle provides several views and tools to help DBAs detect blocking sessions: 1.1 Using V$SESSION View The V$SESSION view helps identify sessions waiting for a resource due to blocking. Query to Find Blocking and Blocked Sessions: SELECT s1.username AS blocker_user, s1.sid AS blocker_sid,…