- PL/SQL
- December 25, 2025
Understanding PRAGMA EXCEPTION_INIT In Oracle Database
EXCEPTION_INIT is a compile-time command or pragma used to associate a exception name with an internal error code.EXCEPTION_INIT instructs the…
- PL/SQL
- December 25, 2025
Understanding PRAGMA EXCEPTION_INIT In Oracle Database
EXCEPTION_INIT is a compile-time command or pragma used to associate a exception name with an internal error code.EXCEPTION_INIT instructs the…
- SQL
- December 25, 2025
Understanding INVISIBLE Column In Oracle Database
As of Oracle 12.1, you can now define invisible columns in relational tables. An invisible column is a user-defined hidden…
- PL/SQL
- December 25, 2025
Understanding FOLLOWS Clause In Oracle Database
Oracle allows more than one trigger to be created for the same timing point, but it has never guaranteed the…
- PL/SQL
- April 5, 2025
Understanding XMLType In Oracle Database.
XMLType is used to store and manipulate XML data. You can use XMLType to define database columns and PL/SQL variables…
- SQL
- April 5, 2025
Understanding CASE Statement & CASE Expression In Oracle Database.
• Simple CASE statement evaluates a expression and executes the statement or sequence of statements associated with the first condition…
- PL/SQL
- April 5, 2025
Understanding Compound Trigger In Oracle Database.
In real world, as you create more and more triggers containing more and more business logic, it becomes difficult to…
- PL/SQL
- March 6, 2025
Understanding RETURNING INTO Clause In Oracle Database.
The RETURNING INTO clause specifies the variables in which to store the values returned by the statement to which the…
- PL/SQL
- March 6, 2025
Understanding OPEN FOR Statement In Oracle Database.
OPEN FOR statement is used to support multiple-row dynamic queries. OPEN cursor_variable|host_cursor_variable} FOR sql_string USING bind_argument; The bind_argument is always…
- SQL
- January 30, 2025
Understanding SELECT FOR UPDATE In Oracle Database
The SELECT FOR UPDATE statement is a special variation of the normal SELECT statement, which proactively issues row locks on…
- Performance Tuning
- December 8, 2024
Understanding COMPOSITE/SUB PARTITION In Oracle Database.
Composite partitioning OR sub partitioning is a partitioning technique in which the table is initially partitioned by the first data…