Find primary key from one table in comma separated list

Question

I\'ve been given the task at work of creating a report based on a very poorly designed table structure.

Consider the following two tables. They contain techniques t

Answer 1

The first comment under the question provided the link to the answer. Here's what I ended up going with:

WHERE
   p.Technique LIKE '%,29,%' --middle
      OR
   p.Technique LIKE '29,%' --start
      OR
   p.Technique LIKE '%,29' --end
      OR 
   p.Technique =  '29' --single (good point by Cheran S in comment)

At initial glance I thought it wouldn't work, but clever use of % made it not match ids like 129, etc.