How to limit sql query time in mysql-Mysql Tutorial-php.cn

Mysql method to limit SQL query time: 1. To query today, the code is [select * from table name where to_days (time field name) = to_days(now())]; 2. To query yesterday, the code is [SELECT * FROM table name WHERE].

How to limit sql query time in mysql

The operating environment of this tutorial: Windows 7 system, mysql version 8.0.22. This method is suitable for all brands of computers.

Related free learning recommendations:mysql video tutorial

Mysql method to limit sql query time:

Today

select * from 表名 where to_days(时间字段名) = to_days(now());

Copy after login

Yesterday

SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 时间字段名) <= 1

Copy after login

Nearly 7 days

SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(时间字段名)

Copy after login

Nearly 30 days

SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(时间字段名)

Copy after login

This month

SELECT * FROM 表名 WHERE DATE_FORMAT( 时间字段名, ‘%Y%m’ ) = DATE_FORMAT( CURDATE( ) , ‘%Y%m’ )

Copy after login

Previous month

SELECT * FROM 表名 WHERE PERIOD_DIFF( date_format( now( ) , ‘%Y%m’ ) , date_format( 时间字段名, ‘%Y%m’ ) ) =1

Copy after login

Query this quarter’s data

select * from ht_invoice_information where QUARTER(create_date)=QUARTER(now());

Copy after login

Query last quarter’s data

select * from ht_invoice_information where QUARTER(create_date)=QUARTER(DATE_SUB(now(),interval 1 QUARTER));

Copy after login

Query this year’s data

select * from ht_invoice_information where YEAR(create_date)=YEAR(NOW());

Copy after login

Query the previous year’s data

select * from ht_invoice_information where year(create_date)=year(date_sub(now(),interval 1 year));

Copy after login

Query the current week’s data

SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,’%Y-%m-%d’)) = YEARWEEK(now());

Copy after login

Query last week’s data

SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,’%Y-%m-%d’)) = YEARWEEK(now())-1;

Copy after login

Query last month’s data

select name,submittime from enterprise where date_format(submittime,’%Y-%m’)=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),’%Y-%m’) select * from user where DATE_FORMAT(pudate,’%Y%m’) = DATE_FORMAT(CURDATE(),’%Y%m’) ; select * from user where WEEKOFYEAR(FROM_UNIXTIME(pudate,’%y-%m-%d’)) = WEEKOFYEAR(now()) select * from user where MONTH(FROM_UNIXTIME(pudate,’%y-%m-%d’)) = MONTH(now()) select * from user where YEAR(FROM_UNIXTIME(pudate,’%y-%m-%d’)) = YEAR(now()) and MONTH(FROM_UNIXTIME(pudate,’%y-%m-%d’)) = MONTH(now()) select * from user where pudate between 上月最后一天 and 下月第一天

Copy after login

Query current month’s data

select name,submittime from enterprise where date_format(submittime,’%Y-%m’)=date_format(now(),’%Y-%m’)

Copy after login

Related free learning recommendations:php programming(video)

The above is the detailed content of How to limit sql query time in mysql. For more information, please follow other related articles on the PHP Chinese website!