MySQL select join where AND where

Question

I have two tables in my database:

Products

• id (int, primary key)
• name (varchar)

ProductTags

Answer 1

The MySQL WHERE fieldname IN (1,2,3) is essentially shorthand for WHERE fieldname = 1 OR fieldname = 2 OR fieldname = 3. So if you aren't getting the desired functionality with WHERE ... IN then try switching to ORs. If that still doesn't give you the results you want, then perhaps WHERE ... IN is not the function you need to use.