[英]Rewrite nested SELECT as INNER JOIN MySQL
我有一個查詢使用WHERE IN語句
SELECT DISTINCT(col)
FROM tab1
WHERE id>71 AND id<5073
AND col IN (SELECT DISTINCT(col) FROM tab0 WHERE id>55 AND id<320)
我嘗試使用INNER JOIN重寫它,但結果卻很少。 我究竟做錯了什么?
SELECT DISTINCT(t1.col)
FROM tab1 as t1
INNER JOIN (
SELECT DISTINCT(col)
FROM tab0 WHERE id>55 AND id<320
) AS t0o ON t1.col = t0o.col
WHERE t1.id>71 AND t1.id<5073
SELECT distinct a.col
FROM tab1 AS a
JOIN tab0 AS b
WHERE a.id > 71 AND a.id < 5073
AND b.id > 55 AND b.id < 320
AND a.col = b.col
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