Join SQL Server tables on a like statement

Question

I am hoping this isn\'t a repeat. I\'ve checked the searches and I can\'t seem to find a clear answer to this.

I have a table that has it\'s primary key set to be a

Answer 1

You may get a performance improvement if you build a temp table first, with the option to index the temp table. You could then also modify the schema (of your temp table) which could give you options on your join. Often when joining to BIG tables it helps to extract a subset of data to a temp table first, then join to it. Other times the overhead of the temp table is bigger than using an 'ugly' join