Calculating Aggregate Affected Rows with Multiple DML Queries in PL/SQL: A Comprehensive Approach

Understanding ORA-03113: End-of-File on Communication Channel

Converting Data from 1 Column to 2 Columns in Oracle SQL

Updating Rows in an Oracle Database: A Conditional Update Solution Using SQL Queries

Extracting Distinct Values from Comma-Separated Columns in Oracle 11g: Conventional and Efficient Approaches

Oracle Hierarchy to Get All Children and All Parents of Each ID Using Recursive CTE

The final answer is:

Understanding the "Column Ambiguously Defined" Error in Oracle SQL Queries

Limiting Rows After Ordering: Alternatives to FETCH FIRST in Oracle 11g and Beyond