我需要获得最近3篇帖子的标题,但如果它出现在最近的3个帖子之一中,则省略一个特定的帖子。
我明白了:
SELECT
postID,
title
FROM
posts
WHERE
categoryID = $categoryID
ORDER BY
date DESC
LIMIT
3
这样可以正常工作,但是我需要判断是否省略了“postID = $ postID”的行 “$ postID”是不应显示并在之前定义的帖子。
谢谢!
答案 0 :(得分:2)
向where
子句添加其他条件以过滤特定的postId
SELECT
postID,
title
FROM
posts
WHERE
categoryID = $categoryID
AND
postID <> $postID
ORDER BY
date DESC
LIMIT
3
答案 1 :(得分:1)
这应该可以解决问题:
SELECT
postID,
title
FROM
posts
WHERE
categoryID = $categoryID
AND
postID != $postID
ORDER BY
date DESC
LIMIT
3
答案 2 :(得分:0)
我理解正确吗?你只想省略等于$ postID的postID?
SELECT
postID,
title
FROM
posts
WHERE
categoryID = $categoryID
AND
postID <> $postID
ORDER BY
date DESC
LIMIT
3
答案 3 :(得分:0)
此查询使用&lt;&gt;返回预期结果操作者:
SELECT
postID,
title
FROM
posts
WHERE
categoryID = $categoryID
AND postID <> $postID
ORDER BY
date DESC
LIMIT
3