Optimization

SQL Server 2022 Parameter Sensitive Plan optimization

Introduction The Intelligent Query Processing (IQP) feature family is extended with SQL Server 2022.One of the most anticipated features is the Parameter Sensitive Plan optimization. I started to test this new feature. In this post, you will(…)

SELECT FROM DUAL : Oracle Performance And Tuning

The DUAL table is automatically created by Oracle and contains one column (DUMMY) and one row (x value). This table is often used by SQL developer in PL/SQL code (Package, Functions, Trigger) to initialize variables storing technical information such as(…)

PostgreSQL Index Suggestion With Powa

By Mouhamadou Diaw A few time ago my colleague Daniel did a blog about POWA. In a nice article he shown how this tool can be used to monitor our PostgreSQL. In this present(…)