Richard Reina wrote:
Can someone help me write a query to tell me the customer numbers (C_NO) of
those who've had more than 4 transactions but none in the last 6 months?
transactions_table
| ID | C_NO | DATE | AMOUT |
| 2901 | 387 | "2003-10-09" | 23.00 |
Obviously my table has many more entries.
Thank you for any help.
Sincerely,
Richard Reina
A people that values its privileges above its principles soon loses both.
-Dwight D. Eisenhower.
Something like:
SELECT C_NO FROM transactions_table
GROUP BY C_NO
HAVING COUNT(*) >= 4
AND COUNT(DATE > CURDATE() - INTERVAL 6 MONTH) = 0;
Michael
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