SQL injection is a method of finding unvalidated, unchecked data inputs in an application and placing, or injecting, T-SQL into those inputs. For example, imagine a Web application that asks the ...

This can be very handy when writing T-SQL that has variables, or when stringing together sets of dynamic SQL. Take a look at the this example: DECLARE @sql nvarchar(1000) ...

This not only clutters T-SQL code, but forces the execution plan to use an index scan. In SQL Server 2022, we have a new IS DISTINCT FROM and IS NOT DISTINCT FROM syntax that not only handles both ...