Learn how to optimize SQL queries for NULL values by following some best practices and techniques, such as using IS NULL or IS NOT NULL operators, avoiding NOT IN with NULL values, and more.

Spread the loveNULL in SQL is a powerful concept, representing the absence of a value. It’s used when data is unavailable or unknown, but its usage requires careful consideration. The first step is ...

Is your SQL drawing a blank? It’s NULL a surprise! The title of this post is a play on words, but very appropriate. We are going to discuss the inconsistent results, as well as performance ...

Miscellaneous Oracle SQL Scripts I wrote over the years covering Performance, Statistics and Routine inspection etc. - guestart/Oracle-SQL-Scripts ...