How to join two tables by multiple columns in SQL?

Question

I have two tables named Evaluation and Value.

In both tables, there are four columns. But three of the four are the same. In other words, th

Answer 1

You would basically want something along the lines of:

SELECT e.*, v.Score
  FROM Evaluation e
LEFT JOIN Value v
ON v.CaseNum = e.CaseNum AND
v.FileNum = e.FileNum AND
v.ActivityNum = e.ActivityNum;