在 MySQL 中调用 NOW() 函数以获取当前日期记录?
我们先创建一个表 -
mysql> create table DemoTable -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> ShippingDate datetime -> ); Query OK, 0 rows affected (1.16 sec)
使用 insert 命令在表中插入一些记录。考虑当前日期“2019-06-28” -
mysql> insert into DemoTable(ShippingDate) values('2019-01-31'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable(ShippingDate) values('2019-06-06'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable(ShippingDate) values('2019-06-28'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable(ShippingDate) values('2019-07-01'); Query OK, 1 row affected (0.16 sec)
使用 select 语句显示表中的所有记录 -
mysql> select *from DemoTable;
输出
这会生成以下输出 -
+----+---------------------+ | Id | ShippingDate | +----+---------------------+ | 1 | 2019-01-31 00:00:00 | | 2 | 2019-06-06 00:00:00 | | 3 | 2019-06-28 00:00:00 | | 4 | 2019-07-01 00:00:00 | +----+---------------------+ 4 rows in set (0.00 sec)
这里有在 MySQL 中调用 NOW() 函数并从表中获取当前日期记录的查询 -
mysql> select *from DemoTable where Date(ShippingDate)=Date(now());
输出
这会生成以下输出 -
+----+---------------------+ | Id | ShippingDate | +----+---------------------+ | 3 | 2019-06-28 00:00:00 | +----+---------------------+ 1 row in set (0.00 sec)
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