Ignoring a NULL parameter in T-SQL

Question

I want to be able to pass in a list of parameters, and ignore the ones which are NULL. So that the query is in effect pretending that the filter isn\'t there and ignoring it

Answer 1

Look at the following link in the section titled "The Case Study: Searching Orders". This explores all options in depth and should give you an excellent overview of the costs associated with each of these options. Warning, be very careful when using COALESCE it may not return what you think it is.

Regards,

Tim