Nice article about 10 SQL optimisations: MySQL, Oracle, SQL Server, DB2, PostgreSQL
Recently I found a very nice article explaining in great detail how you can optimize SQL and Databases. It's including the biggest DB engines:
- Oracle 12.2
- MySQL 8.0.2
- SQL Server 2014
- PostgreSQL 9.6
- DB2 LUW 10.5
Includes explanation and measurements. This is the article. A must read for junior DBAs. Enjoy reading:
10 Cool SQL Optimisations That do not Depend on the Cost Model