DEV Community

select * from SQL

Posts on tips and tricks, using and learning about SQL for database development and analysis.

Posts

đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.
NOT IN returned zero rows. It wasn't your data — it was one NULL.

NOT IN returned zero rows. It wasn't your data — it was one NULL.

Comments 1
2 min read
Oracle ORA-00909 Error: Causes and Solutions Complete Guide

Oracle ORA-00909 Error: Causes and Solutions Complete Guide

Comments
3 min read
PostgreSQL 2200S Error: Causes and Solutions Complete Guide

PostgreSQL 2200S Error: Causes and Solutions Complete Guide

Comments
3 min read
SELECT MAX()+1 Is a Race Condition Waiting to Happen

SELECT MAX()+1 Is a Race Condition Waiting to Happen

Comments
3 min read
How to Choose the Right SQL Database for Your Project

How to Choose the Right SQL Database for Your Project

Comments
5 min read
SQL - Order By, Limit and Offset

SQL - Order By, Limit and Offset

Comments
1 min read
Dynamic Column Updates in EF Core Without Hand-Rolling SQL Injection

Dynamic Column Updates in EF Core Without Hand-Rolling SQL Injection

Comments
3 min read
Postgres or ClickHouse? Row vs Column Storage, and When Each Wins

Postgres or ClickHouse? Row vs Column Storage, and When Each Wins

Comments
3 min read
SQL Basics Explained: DDL, DML, Filtering, and CASE WHEN

SQL Basics Explained: DDL, DML, Filtering, and CASE WHEN

2
Comments 2
4 min read
Dynamic SOQL Without Getting Burned

Dynamic SOQL Without Getting Burned

Comments
7 min read
PostgreSQL 2200N Error: Causes and Solutions Complete Guide

PostgreSQL 2200N Error: Causes and Solutions Complete Guide

Comments
3 min read
SQLAlchemy Essentials: A Beginner’s Roadmap

SQLAlchemy Essentials: A Beginner’s Roadmap

Comments
6 min read
PostgreSQL 2200M Error: Causes and Solutions Complete Guide

PostgreSQL 2200M Error: Causes and Solutions Complete Guide

Comments
3 min read
Three PostgreSQL Master/Replica Discovery Problems — and How to Solve Them

Three PostgreSQL Master/Replica Discovery Problems — and How to Solve Them

Comments
17 min read
Why SQL Still Rules the Data World: Surprising Truths from the Relational Revolution

Why SQL Still Rules the Data World: Surprising Truths from the Relational Revolution

Comments
5 min read
đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.