Categories / sql
How <> works when compared with multiple values?
How to Conditionally Add an AND Condition to a WHERE Clause in SQL Server Using Boolean Expressions
Improving SQL Queries by Understanding Table Aliases and Qualifying Column References
Filtering Data with LAG Function: A Deep Dive
Finding the First Row for Each ID-Grade Combination Using Window Functions in MySQL
How to Perform Calculations with Multiple Subqueries in SQL: Best Practices and Syntax
Iterating Through Customers on a 12-Months-Rolling Basis: Two Approaches to Simplify Your Queries
Best Practices for Creating Tables with Integrity Constraints in SQL Databases
Solving Double Quote Issues in Concatenated Queries
How to Export Each Table Row to a Separate JSON File in SQL Server Using OPENJSON