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Logical operators allow you to test whether a condition is true or false. Therefore, the result returned by a logical operator is either true, false, or NULL (unknown). You can think of a NULL result ...

This tutorial explains how to select and filter data from a MySQL database table using MySQL logical operators in PHP in XAMPP.

note that, in SQL Server 2008 (IIRC) the varchar (max) is now huge and can avoid any need for TEXT columns.<BR><BR>Simply changing to that can solve a whole host of issues.

In another thread someone suggested I use MINUS, but I was under the impression that only Oracle had the MINUS function, does SQL Server 2005 also have this option?(I know I can use NOT EXISTS but ...

One of the basic operations required to gather more information about an object is called information aggregation or data fusion. The process requires recognition of a semantic object and gathering ...