Detailed Explanation of Data Code for Querying a Certain Day a Certain Month and a Certain Year in MySQL

2021-12-04 20:03:23
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Today


select * from  Table name  where to_days( Time field name ) = to_days(now());

Yesterday (including yesterday's and today's data)


SELECT * FROM  Table name  WHERE TO_DAYS( NOW( ) ) - TO_DAYS(  Time field name ) <= 1

Yesterday (including yesterday only)


SELECT * FROM  Table name  WHERE DATEDIFF( Field ,NOW())=-1; --  In the same way, the query the day before yesterday is -2

Nearly 7 days


SELECT * FROM  Table name  where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date( Time field name )

Nearly 30 days


SELECT * FROM  Table name  where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date( Time field name )

This month


SELECT * FROM  Table name  WHERE DATE_FORMAT(  Time field name , '%Y%m' ) = DATE_FORMAT( CURDATE( ) , '%Y%m' )

Last January


SELECT * FROM  Table name  WHERE PERIOD_DIFF( date_format( now( ) , '%Y%m' ) , date_format(  Time field name , '%Y%m' ) ) =1

Query the data of this quarter


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

Query last quarter data


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

Query data of this year


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

Query the data of the previous year


SELECT * FROM  Table name  WHERE TO_DAYS( NOW( ) ) - TO_DAYS(  Time field name ) <= 1

Query data for the current week


SELECT * FROM  Table name  WHERE TO_DAYS( NOW( ) ) - TO_DAYS(  Time field name ) <= 1

Query last week's data


SELECT * FROM  Table name  WHERE TO_DAYS( NOW( ) ) - TO_DAYS(  Time field name ) <= 1

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  Last month 1 Days  and  Next month 1 Days

Query the data of the current month


SELECT * FROM  Table name  WHERE TO_DAYS( NOW( ) ) - TO_DAYS(  Time field name ) <= 1

Query data 6 months away from the current one


SELECT * FROM  Table name  WHERE TO_DAYS( NOW( ) ) - TO_DAYS(  Time field name ) <= 1

Summarize