Author: Shoumadip Das
- PL/SQL
- September 30, 2022
Understanding AUTHID Clause In Oracle
AUTHID CURRENT_USER It is used when we want a routine to be executed with the privileges of the invoker and…
- SQL
- September 18, 2022
Understanding Clustering In Oracle Database
Clustering is a method of storing tables that are intimately related and often joined together into the same area on…
- PL/SQL
- August 22, 2022
Understanding AUTONOMOUS TRANSACTION with ISOLATION LEVEL
The default behavior of AUTONOMOUS TRANSACTIONS is that once a COMMIT/ROLLBACK occurs in the AUTONOMOUS TRANSACTION, those changes are visible…
- PL/SQL
- July 10, 2022
WITH CLAUSE/SUBQUERY FACTORING OPTIMIZATION
If the content of the WITH clause is sufficiently complex, Oracle may decide to resolve the subquery into a global…
- SQL
- May 18, 2022
Understanding RealTime Materialized View In Oracle Database 19c
In earlier Oracle version, QUERY REWRITE feature used to stop working as soon as the materialized view become STALE, unless…
- Performance Tuning
- April 25, 2022
Understanding SET TRANSACTION In Oracle 19c
The SET TRANSACTION statement allows you to begin a read-only or read-write session,establish an isolation level,or assign the current transaction…
- Architecture
- March 28, 2022
Understanding DBMS_SHARED_POOL Package
The DBMS_SHARED_POOL package provides access to the shared pool, which is the shared memory area where cursors and PL/SQL objects…
- PL/SQL
- February 20, 2022
Understanding SET Operations In NESTED TABLE
Out of the three collection types, NESTED TABLE collection type supports SET operations in Oracle. x MULTISET EXCEPT [DISTINCT] y…
- PL/SQL
- December 19, 2021
Understanding Oracle 12c ACCESSIBLE BY CLAUSE
The ACCESSIBLE BY clause can be added to packages, procedures, functions and types to specify which objects are able to…
- PL/SQL
- October 17, 2021
Understanding DBMS_OUTPUT Package
Oracle provides the DBMS_OUTPUT package to enable you to send information from your programs to a buffer. This buffer can…