php - SQL 结果来自不同领域的研究

Question

我有这个 SQL 表：

name  | id_photo
================
word1 | 38    
word2 | 38
word7 | 39
word1 | 31
word2 | 31

我想研究所有的 id_photo，例如 name = word1 AND name = word2 例如这种情况我想作为回报 38,31

有人可以提出解决方案吗？

score 2 · Accepted Answer

SELECT ID_PHOTO
FROM tableNAME
WHERE name IN ('word1','word2')
GROUP BY ID_PHOTO
HAVING COUNT(*) = 2

如果没有在每个名称上指定唯一键，请在内部id_photo使用distinctCOUNT

SELECT ID_PHOTO
FROM tableNAME
WHERE name IN ('word1','word2')
GROUP BY ID_PHOTO
HAVING COUNT(DISTINCT name) = 2

1 回答 1