在MySQL中存储每周活动的最佳方法？
让我们看看在MySQL中存储每周事件的最佳方法。为此，首先创建一个新表并包括每天的字段。
mysql> create table WeeklyEventDemo -> ( -> ID int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> EventName varchar(20), -> Monday tinyint(1), -> Tuesday tinyint(1), -> Wednesday tinyint(1), -> Thursday tinyint(1), -> Friday tinyint(1), -> Saturday tinyint(1), -> Sunday tinyint(1), -> StartDate date, -> EndDate date -> );
使用insert命令在表中插入一些记录。查询如下-
mysql> insert into WeeklyEventDemo(EventName,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday,Sunday,StartDate,EndDate) values('Event-1',0,0,0,0,1,0,0,'2018-03-21','2019-03-08');
mysql> insert into WeeklyEventDemo(EventName,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday,Sunday,StartDate,EndDate) values('Event-2',0,0,0,0,0,1,0,'2018-03-21','2019-03-08');使用select语句显示表中的所有记录。查询如下-
mysql> select *from WeeklyEventDemo;
以下是输出
+----+-----------+--------+---------+-----------+----------+--------+----------+--------+------------+------------+ | ID | EventName | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday | StartDate | EndDate | +----+-----------+--------+---------+-----------+----------+--------+----------+--------+------------+------------+ | 1 | Event-1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2018-03-21 | 2019-03-08 | | 2 | Event-2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2018-03-21 | 2019-03-08 | +----+-----------+--------+---------+-----------+----------+--------+----------+--------+------------+------------+ 2 rows in set (0.00 sec)
以下是在MySQL中每周获取事件的查询
mysql> select *from WeeklyEventDemo where Friday=1;
以下是输出
+----+-----------+--------+---------+-----------+----------+--------+----------+--------+------------+------------+ | ID | EventName | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday | StartDate | EndDate | +----+-----------+--------+---------+-----------+----------+--------+----------+--------+------------+------------+ | 1 | Event-1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2018-03-21 | 2019-03-08 | +----+-----------+--------+---------+-----------+----------+--------+----------+--------+------------+------------+ 1 row in set (0.00 sec)