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Tip of the Day
Language: SQL Server
Expertise: Beginner
Oct 26, 1999

Comparing Two Tables

Question:
How do I compare two tables and extract only where field1 doesn't match field2? Will MINUS do it?

Answer:
Yes, but it's not that direct. To do MINUS (or DIFFERENCE), I think you need to use WHERE NOT IN like this:

 
SELECT t1.c1 
from t1 
where t1.c1 NOT IN 
(
select t2.c1 from t2
)
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