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MySQL执行DateTime比较并在不同列中查找日期之间的差异

2024-05-15 10:29:06 413

为此，请使用DATEDIFF()方法。让我们首先创建一个表-

mysql> create table DemoTable(DOB datetime,CurrentDate datetime);

使用插入命令在表中插入一些记录-

mysql> insert into DemoTable values('1995-01-21',CURDATE());
mysql> insert into DemoTable values('1998-11-01',CURDATE());
mysql> insert into DemoTable values('2000-10-24',CURDATE());

使用select语句显示表中的所有记录-

mysql> select *from DemoTable;

这将产生以下输出-

+---------------------+---------------------+
| DOB                 | CurrentDate         |
+---------------------+---------------------+
| 1995-01-21 00:00:00 | 2019-07-08 00:00:00 |
| 1998-11-01 00:00:00 | 2019-07-08 00:00:00 |
| 2000-10-24 00:00:00 | 2019-07-08 00:00:00 |
+---------------------+---------------------+
3 rows in set (0.00 sec)

以下是日期时间比较的查询-

mysql> select *from DemoTable where (datediff(CurrentDate,DOB) / 365) > 23;

这将产生以下输出-

+---------------------+---------------------+
| DOB                 | CurrentDate         |
+---------------------+---------------------+
| 1995-01-21 00:00:00 | 2019-07-08 00:00:00 |
+---------------------+---------------------+
1 row in set (0.00 sec)

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MySQL执行DateTime比较并在不同列中查找日期之间的差异

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