Community Learn Tools Library Leisure
search
English
Home > Database > Mysql Tutorial > body text

mysql查询数据，比较数据大小

WBOY
Release： 2016-06-06 09:45:28
Original
1893 people have browsed it

mysql

我现在碰到的问题: 在一个列的信息中查处2013年6月8日前的信息(该列值是一个varchar2类型，而且值中的第2位为年，第3位为月，第4位为日信息).而2013使用N表示(2000年开始用字母A,B.C...表示),月份超过10的用字母A，B。。。表示，日期超过10的也用A，B。。。表示 我要怎么使用MYSQL语句直接查出数据呢（是mysql，不是oracle）,数据可能有一百多万笔。。。
如：NN68KKKKKKKK这个值表示是2013年6月8号生产的信息

Related labels：
mysql
source：php.cn
Previous article：mysql-Mysql数据库触发器执行不成功 Next article：mysql java.sql.SQLException 问题
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
How to display only the lowest value from a result set (MYSQL) I have the following statement: selectDATE(recieved_on)asDay,round(count(*)/24)AS'average'...
From 2024-04-06 21:44:19
0
1
603
Calculate the sum of fields in another table using MySQL SQL query I have a schema like this: User table with attributes "user_id" and "userna...
From 2024-04-06 19:39:29
0
1
441
MySQL: "Select text from... as <variable here or subquery>" I have the following table with the following data: id text language 1 german text german ...
From 2024-04-06 19:25:54
0
2
529
How to group and count in MySQL? I'm trying to write a query that extracts the total number of undeleted messages sent to f...
From 2024-04-06 18:30:17
0
1
353
MySQL gets data from multiple tables I have a eg_design table which contains the following columns: and eg_domains table which ...
From 2024-04-06 18:42:44
0
2
479
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template