description Reference for the CAST and CONVERT Transact-SQL functions. These functions convert expressions from one data type to another.

Introduced in [!INCLUDEnav_current_long_md], SmartSQL optimization does all calculations of FlowFields on a page by using a single SQL query. This reduces the number of network roundtrips from the ...

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 ...

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 ...