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Query IN()未按预期工作

mysql

Ben · 技术社区 · 14 年前

SELECT board.id, board.name
FROM board
INNER JOIN group_assoc ON group_id
IN (
"4,9,12,15,18,21,22,55,57,83,84,86,89,92,95,98,104,105"
)
AND group_assoc.board_id = board.id
INNER JOIN category ON category.id = board.category_id
AND category.forum_id =2

我得到的结果与

SELECT board.id, board.name
FROM board
INNER JOIN group_assoc ON group_id = 9
AND group_assoc.board_id = board.id
INNER JOIN category ON category.id = board.category_id
AND category.forum_id =2

是不是只拉所有小组都能看到的板子?

2 回复 | 直到 14 年前

iamtheexp01 14 年前

如果“in”中的值是整数,不要使用双引号(“”),如下所示


SELECT board.id, board.name
FROM board
INNER JOIN group_assoc ON group_id
IN (
4,9,12,15,18,21,22,55,57,83,84,86,89,92,95,98,104,105
)
AND group_assoc.board_id = board.id
INNER JOIN category ON category.id = board.category_id
AND category.forum_id =2


SELECT board.id, board.name
FROM board
INNER JOIN group_assoc ON group_id
IN (
"4121213","9434345443","12545454"
)
AND group_assoc.board_id = board.id
INNER JOIN category ON category.id = board.category_id
AND category.forum_id =2

theazureshadow 14 年前

尝试 IN (4,9,12,...)

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