如何在 MySQL 中查询本周的数据?
若要在 MySQL 中查询本周的数据,可以使用 YEARWEEK() 函数。
语法如下所示
SELECT *FROM yourTableName WHERE YEARWEEK(yourDateColumnName) = YEARWEEK(NOW());
为了理解上述语法,我们创建一个表。创建表的查询如下所示
mysql> create table currentWeekDemo -> ( -> UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> UserName varchar(20), -> UserPostDate date -> ); Query OK, 0 rows affected (0.68 sec)
使用插入命令在表中插入一些记录。查询如下所示 −
mysql> insert into currentWeekDemo(UserName,UserPostDate) values('Carol','2010-01-06'); Query OK, 1 row affected (0.20 sec) mysql> insert into currentWeekDemo(UserName,UserPostDate) values('Bob','2019-06-04'); Query OK, 1 row affected (0.17 sec) mysql> insert into currentWeekDemo(UserName,UserPostDate) values('David','2019-03-06'); Query OK, 1 row affected (0.16 sec) mysql> insert into currentWeekDemo(UserName,UserPostDate) values('Maxwell','2018-04-21'); Query OK, 1 row affected (0.15 sec)
使用 select 语句显示表中的所有记录。查询如下所示 −
mysql> select *from currentWeekDemo;
以下是输出
+--------+----------+--------------+ | UserId | UserName | UserPostDate | +--------+----------+--------------+ | 1 | Carol | 2010-01-06 | | 2 | Bob | 2019-06-04 | | 3 | David | 2019-03-06 | | 4 | Maxwell | 2018-04-21 | +--------+----------+--------------+ 4 rows in set (0.00 sec)
以下是如何在 MySQL 中查询本周的数据
mysql> select *from currentWeekDemo WHERE YEARWEEK(UserPostDate) = YEARWEEK(NOW());
以下是输出
+--------+----------+--------------+ | UserId | UserName | UserPostDate | +--------+----------+--------------+ | 3 | David | 2019-03-06 | +--------+----------+--------------+ 1 row in set (0.05 sec)
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