Q&A
- DB Q&A
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DaINs 12-07-19 11:51
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SELECT C
FROM TABLE
WHERE B IN (2,3,5,9)
GROUP BY C
HAVING COUNT(*) = 4 <- 2,3,5,9 ÀÇ ¼ýÀÚ °¹¼ö -

Lov2 12-07-19 12:18
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DaINs´Ô ´äº¯ °¨»çÇÕ´Ï´Ù.
Àúµµ óÀ½¿¡ Àú·¸°Ô Çߴµ¥ À§¿Í °°ÀÌ Äõ¸®¸¦ ³¯·Áº¸¸é
CÀÇ °ªÀÌ 133¹ø°ú 134¹øÀÌ ³ª¿À°Ô µÇ³×¿ä..
Àú´Â µü 133¹ø¸¸ ³ª¿Í¾ß Çϰŵç¿ä.
¸¸¾à¿¡ BÀÇ Á¶°ÇÀÌ 2,3,5¸é ¾Æ¹« °ªµµ ¾È³ª¿Í¾ß Çϰí¿ä. -

DaINs 12-07-19 12:30
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±×·¸´Ù¸é IN°ú NOT INÀ» °°ÀÌ »ç¿ëÇØº¸¼¼¿ä..
SELECT C
FROM TABLE
WHERE B IN (2, 3, 5, 9)
AND C NOT IN (SELECT C FROM TABLE WHERE B NOT IN (2, 3, 5, 9))
GROUP BY C
HAVING COUNT(*) = 4;
À̶§¿¡µµ ¸¸¾à.. B°ªÀÌ Áߺ¹ÀÌ ÀÖ´Ù¸é INÀ¸·Î Çϸé COUNT(*) °ªÀÌ ÀÌ»óÇØÁö´Ï
DISTINCT ¸¦ »ç¿ëÇØ¼ Á¶°Ç °¢°¢ °É°í À̰ÍÀ» UNION ALL·Î Äõ¸®ÇÏ¸é µË´Ï´Ù. -

Lov2 12-07-19 12:37
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DaINs´Ô Áø½ÉÀ¸·Î °¨»çµå¸³´Ï´Ù.
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