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.

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 ...

REM SQL from the KISS (Keep It Simply SQL) Analytic video series by Developer Advocate Connor McDonald. This script looks at how to deal with nulls when using the window clause.

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

Null pointer exceptions are no fun. You can avoid them and keep your code clean and maintainable by using these techniques to elegantly handle null values in C#.

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 ...

Christopher Null has a very unfortunate surname – in the SQL programming language that is used to communicate with databases, "null" is a reserved term meaning that the value of a string (text ...

I’m sure many business intelligence developers have experienced a customer asking why there are null values in their report and what they mean. It’s very common to have unknown values in a data ...

How To Indicate A Null Value Null value means "I don't know if there is a value, or what it is." To allow null value in a field, make sure "Required" in field properties in design view is set No. To ...