Tag: SQL Functions

SQL ROWNUM Function Explained

DB2 DECODE Function Explained

SQL: Convert VARCHAR to Decimal

MySQL NULL Handling: IS NULL, COALESCE, IFNULL

MySQL Functions: Math & String Guide

Oracle INTERSECT Function Explained

SQL EXISTS Function: Usage & Examples

SQL Concatenate Columns: Quick Guide

SQL COUNT Function: Data Counting Guide

SQL COUNT Column: How to Count Specific Columns