Dbms_output
Redefine a Table Online with DBMS_REDEFINITION, No DML Blocking
Redefine a Table Online with DBMS_REDEFINITION, No DML Blocking Purpose A DBA moving a table to a new tablespace, adding compression, or rebuilding a badly fragmented segment has one hard requirement: users can't lose access to that table while the change is happening. For decades the available tools — CREATE TABLE AS …
Read MoreOracle: Find Tables with Outdated Statistics via DBA_TABLES
Jul 1, 2025 / · 3 min read · dba_tables oracle database dba statistics performance monitoring sql tuning dbms_output ·Oracle Database Query: Find Tables with Outdated Statistics Purpose This Oracle Database query helps database administrators monitor the progress of table statistics collection by identifying tables that have analyze dates older than the current date. It's particularly useful when running large-scale ANALYZE operations …
Read MoreShow all Active SQL for Sessions using v$session and v$sqlarea Gain real-time insights into currently active user sessions and the SQL statements they are executing to troubleshoot performance issues and optimize resources SQL Code 1set feedback off 2set serveroutput on size 9999 3column username format a20 4column …
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