Unpivoting Data Using CTEs and PIVOT in SQL Server or Oracle Databases

Understanding Index-Organized Tables (IOTs) in Oracle: A Comprehensive Guide to Creating and Managing IOTs

Understanding Database Querying: How to Retrieve Records Added After a Particular Date and Time Without a DateTime Column

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

How to Use Joins and Case Expressions in Oracle SQL for Complex Data Selection.

Extracting String Between Different Special Symbols Using REGEX

Understanding how to Convert Dates to Strings in Oracle PL/SQL: Best Practices and Examples