OK so I have a query I am trying to build.. I have 2 tables, table1 has a b开发者_JAVA技巧unch of regular records as normal with a unique ID (auto increment) and table2 has records that include some of those ids from table1. I am trying to order by the highest records with that same ID in table1.. Heres what I've got:
SELECT * FROM table1
WHERE table1.status = 1
AND (SELECT COUNT(*) FROM table2 WHERE table2.tbl1_id = table1.id)
ORDER BY table1.id DESC
Thanks :)
SELECT table1.id
FROM table1
LEFT JOIN table2 ON table2.tbl1_id = table1.id
WHERE table1.status = 1
GROUP BY table1.id
ORDER BY COUNT(table2.tbl1_id) DESC
Try this:
SELECT a.*, b.cnt
FROM table1 a LEFT JOIN
(
SELECT tbl1_id, COUNT(*) cnt
FROM table2
GROUP BY tbl1_id
) b
ON a.id = b.tbl1_id
WHERE table1.status = 1
ORDER BY cnt DESC
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