Tag: database

PostgreSQL GROUP_CONCAT Equivalent: string_agg Explained

Oracle CONCAT Function: A Comprehensive Guide to String Concatenation

Understanding SQL Hints: Optimizing Query Performance

Oracle nvarchar vs. varchar: Key Differences and Use Cases

SQL CAST Function: Purpose, Usage, and Examples

SQL: Efficiently Remove Duplicates and Calculate Sums

SQL: Efficiently Concatenate VARCHAR Fields – A Comprehensive Guide

PL/SQL: How to Check Table Creation Time – A Comprehensive Guide

Combining AND and OR Operators in SQL Queries for Complex Filtering

SQL String Concatenation: Methods and Examples