how to use a like with a join in sql?

Question

I have 2 tables, say table A and table B and I want to perform a join, but the matching condition has to be where a column from A \'is like\' a column from B meaning that an

Answer 1

If this is something you'll need to do often...then you may want to denormalize the relationship between tables A and B.

For example, on insert to table B, you could write zero or more entries to a juncion table mapping B to A based on partial mapping. Similarly, changes to either table could update this association.

This all depends on how frequently tables A and B are modified. If they are fairly static, then taking a hit on INSERT is less painful then repeated hits on SELECT.