mysql选择多个WHERE的查询

Question

我需要通过它的ID在1个查询中选择几行，例如这里是我写的东西

SELECT * FROM posts WHERE post_id = "15 , 14 , 14"

如何在真正的SQL查询中完成？

Answer 1

SELECT * FROM posts WHERE post_id IN (14,15);

Answer 2

SELECT * FROM posts WHERE post_id IN ( "15" , "14" )

Answer 3

最快的选择，效率更高：

SELECT * FROM posts WHERE post_id IN (14,15) 

但是使用说明OR并没有错误

SELECT * FROM posts WHERE post_id = 14 OR post_id = 15

Answer 4

在where condition中使用OR / AND。像：

SELECT * FROM posts WHERE post_id = '13' OR post_id = '14' OR post_id = '15'

Answer 5

你也可以使用：

SELECT * FROM posts WHERE post_id BETWEEN 14 and 15