I've been in an argument with one of our devs that took an update statement with an inner join and made it a left join (because inner was missing some records somehow in the left table - tableB in ...

How many null values exist? What is the difference between a null value and a blank entry? This article answers those questions and more by discussing what to look for when creating Access apps that ...

IS NULL and IS MISSING are predicates that test for a missing value. IS NULL and IS MISSING are used in the WHERE, ON, and HAVING expressions. Each predicate resolves to true if the sql-expression's ...

Null values indicate that data is missing or unknown, and if you don’t take steps to handle them, you could wind up with runtime errors or erroneous data. These Access pointers will help you ...