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在MySQL中搜索存储为varchar的日期之间？

2024-04-29 00:11:04 460

您可以使用STR_TO_DATE()在存储为varchar的日期之间进行搜索。语法如下-

select *from yourTableName where STR_TO_DATE(LEFT(yourColumnName,LOCATE('',yourColumnName)),'%m/%d/%Y') BETWEEN 'yourDateValue1' AND 'yourDateValue2’;

为了理解上述语法，让我们创建一个表。创建表的查询如下-

mysql> create table SearchDateAsVarchar
   -> (
   -> Id int NOT NULL AUTO_INCREMENT,
   -> ShippingDate varchar(100),
   -> PRIMARY KEY(Id)
   -> );

使用INSERT命令在表中插入一些记录。查询如下-

mysql> insert into SearchDateAsVarchar(ShippingDate) values('6/28/2011 9:58 AM');
mysql> insert into SearchDateAsVarchar(ShippingDate) values('6/18/2011 10:50:39 AM');
mysql> insert into SearchDateAsVarchar(ShippingDate) values('6/22/2011 11:45:40 AM');

使用select语句显示表中的所有记录。查询如下-

mysql> select *from SearchDateAsVarchar;

以下是输出-

+----+-----------------------+
| Id | ShippingDate          |
+----+-----------------------+
|  1 | 6/28/2011 9:58 AM     |
|  2 | 6/18/2011 10:50:39 AM |
|  3 | 6/22/2011 11:45:40 AM |
+----+-----------------------+
3 rows in set (0.00 sec)

这是在存储为varchar的日期之间进行搜索的查询-

mysql> select *from SearchDateAsVarchar where
STR_TO_DATE(LEFT(ShippingDate,LOCATE(' ',ShippingDate)),'%m/%d/%Y') BETWEEN
'2011-06-20' AND '2011-06-28';

以下是输出-

+----+-----------------------+
| Id | ShippingDate          |
+----+-----------------------+
|  1 | 6/28/2011 9:58 AM     |
|  3 | 6/22/2011 11:45:40 AM |
+----+-----------------------+
2 rows in set (0.00 sec)

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在MySQL中搜索存储为varchar的日期之间？

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