对日期时间字段运行选择查询时出错

Question

我收到此错误：

  

1064-您的SQL语法有错误；查看与您的MySQL服务器版本相对应的手册以使用正确的语法   靠近'=>“ 2018-08-14” AND createDate = <“ 2018-08-28”排序方式   createDate DESC LIMIT 0，在第1行

当我运行此查询时：

SELECT * FROM offer_request WHERE createDate => "2018-08-14" AND createDate =< "2018-08-28" ORDER BY createDate DESC LIMIT 0, 15

createDate是日期时间字段。即：2018-07-19 12:53:59

Answer 1

使用日期函数转换createDate：

SELECT * FROM offer_request WHERE date(createDate) >= '2018-08-14' AND date(createDate) <= '2018-08-28' ORDER BY createDate DESC LIMIT 0, 15

Answer 2

您的SQL查询中有错误，必须像这样使用，并尝试对datetime字段使用date（）函数

SELECT * FROM offer_request WHERE date(createDate) >= '2018-08-14' AND date(createDate) =< '2018-08-28' ORDER BY createDate DESC LIMIT 0, 15

Answer 3

尝试这种最简单有效的方法:)

  SELECT * FROM offer_request WHERE createDate BETWEEN "2018-08-14" AND "2018-08-28" ORDER BY createDate DESC LIMIT 0, 15