Grouping Rows Together in a New Table: A MySQL Tutorial

MySQL Function Tutorial: Combining Strings into a JSON Object

Counting Calls from Other Tables in SQL Using Joins and Grouping

Handling Dates in Hive/Impala: A Custom User Defined Function Approach for Efficient and Readable Date Formats

Understanding the Power of MySQL Date Formats for Efficient Data Manipulation

Mastering Date Manipulation in PostgreSQL: Grouping Data by Hour and Beyond

Exploding JSON Arrays in SQL Server 2019: A Step-by-Step Guide

Optimizing SQL Queries for Desired Results Using SUM, MAX, IN, and LIKE Operators

SQL Server Conditional Aggregation: Calculating Outstanding Orders

Understanding Regular Expressions in PL/SQL: Effective String Manipulation Using REGEXP_SUBSTR Function