Aaron
An exclusion join:
SELECT a.col
FROM a
LEFT JOIN b ON a.col=b.col
WHERE b.col IS NULL;
PB
Aaron Fischer wrote:
Greetings!
I have a problem that it seems would best be solved using subqueries.
However, I am working on a server that is running MySQL 3.23.58, so
subqueries are not available to me.
What I am trying to do:
I have two tables, each containing approximately 37,000 records. I
want to compare the index field in Table A to the index field in Table
B. I would like to see all records where the index in Table A does
not exist in Table B.
Thoughts? Suggestions?
Much appreciated!
-Aaron
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