I'm writing some code in C# where I need to (inner?) join two tables into a DataSet / DataTable.<BR><BR>Essentially, I have two tables. Both have columns called "TestId" and "OperationId". Both are ...

In this SQL Server tip, Arthur Fuller explains the effects of NULLs, and the different results obtained by inner and outer JOINs. SQL Server developers must understand two things: the difference ...

At Microsoft Build, SQL Server 2025 enters public preview with major enhancements in AI integration, performance, reliability and developer tools -- reaffirming Microsoft’s continued investment in its ...

Here's a look at different ways to query Hadoop via SQL, some of which are part of the latest edition of MapR's Hadoop distribution SQL: old and busted. Hadoop: new hotness. That’s the conventional ...