記錄一些sql語句

2021-09-22 21:29:26 字數 3621 閱讀 2279

mysql查詢今天、昨天、7天、近30天、本月、上一月 資料

今天


select * from 表名 where to_days(時間欄位名) = to_days(now());


昨天select * from 表名 where to_days( now( ) ) - to_days( 時間欄位名) <= 1


7天select * from 表名 where date_sub(curdate(), interval 7 day) <= date(時間欄位名)


近30天


select * from 表名 where date_sub(curdate(), interval 30 day) <= date(時間欄位名)


本月select * from 表名 where date_format( 時間欄位名, '%y%m' ) = date_format( curdate( ) , '%y%m' )


上一月select * from 表名 where period_diff( date_format( now( ) , '%y%m' ) , date_format( 時間欄位名, '%y%m' ) ) =1


#查詢本季度資料


select * from `ht_invoice_information` where quarter(create_date)=quarter(now())


#查詢上季度資料


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


#查詢本年資料


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


#查詢上年資料


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


查詢當前這週的資料 


select name,submittime from enterprise where yearweek(date_format(submittime,'%y-%m-%d')) = yearweek(now());


查詢上週的資料


select name,submittime from enterprise where yearweek(date_format(submittime,'%y-%m-%d')) = yearweek(now())-1;


查詢當前月份的資料


select name,submittime from enterprise where date_format(submittime,'%y-%m')=date_format(now(),'%y-%m')


查詢距離當前現在6個月的資料


select name,submittime from enterprise where submittime between date_sub(now(),interval 6 month) and now();


查詢上個月的資料


複製**


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 上月最後一天


and 下月第一天


where date(regdate) = curdate();


select * from test where year(regdate)=year(now()) and month(regdate)=month(now()) and day(regdate)=day(now())


select date( c_instime ) ,curdate( )


from `t_score`


where 1


limit 0 , 30
mybatis的轉譯字元

<	<	小於


> > 大於


& & 與


' ' 單引號


" " 雙引號
查詢結果判斷處理

case when isnull(a.***) then '未設定' when a.*** = 1 then '女' when a.*** = 0 then '男' end as "***"
將生日轉換成歲數

timestampdiff(year, birthday, curdate())
date型別比對使用年月日，進行like

create_date like concat(#,'%')
傳入字串轉成數字進行比對

select * from a where id= convert('123',signed);
獲取最接近的值  主要運用abs關鍵字

select price_top from o_discounts where abs(price - #) = ( select min(abs(price - #)) from o_discounts where del_flag = # and # >= price ) and del_flag = # and # >= price
查詢string串裡面內容是否包含傳入值，要用逗號隔開，3是傳入值，返回結果1:有相同，0：沒有相同

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