NULL 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 understanding the ...

I'm trying to put together a DTS package to export data from SQL Server (2k) into a CSV file that I can in turn import into MySQL.<BR><BR>The problem I'm running into is SQL Server exports NULL values ...

Apart from using COALESCE(), there are 2 other ways to replace NULL values in SQL Server. Let's understand this with an example. I have a Table tblEmployee, as shown in the diagram below. Some of the ...