mysql 关于时间整理
/*上个月今天的当前时间*/ select date_sub(now(),interval 1 month) ; /*上个月今天的当前时间(时间戳)*/ select UNIX_TIMESTAMP(date_sub(now(),interval 1 month)) ; /*上个月的第一天*/ select date_sub(date_sub(date_format(now(),'%y-%m-%d 00:00:00'),interval extract( day from now())-1 day),interval 1 month); /*上个月的第一天(时间戳)*/ select UNIX_TIMESTAMP(date_sub(date_sub(date_format(now(),'%y-%m-%d 00:00:00'),interval extract( day from now())-1 day),interval 1 month)) ; /*上个月的第一天:*/ select date_sub(date_sub(date_format(now(),'%y-%m-%d'),interval extract(day from now())-1 day),interval 1 month); /*上个月的最后一天:*/ select date_sub(date_sub(date_format(now(),'%y-%m-%d'),interval extract(day from now()) day),interval 0 month) as date; /*这个月的第一天:*/ SELECT DATE_SUB(DATE_SUB(DATE_FORMAT(NOW(), '%y-%m-%d'), INTERVAL EXTRACT(DAY FROM NOW()) - 1 DAY), INTERVAL 0 MONTH);
/* 针对于 昨天 而言的 那个月 的 第一天*/
SELECT DATE_ADD(DATE_SUB(CURDATE(),INTERVAL 1 DAY), interval - day(DATE_SUB(CURDATE(),INTERVAL 1 DAY)) + 1 DAY);
/*这个月的最后一天:*/
select date_sub(date_sub(date_format(now(),'%y-%m-%d'),interval extract(day from now()) day),interval -1 month) as date;
/*获取本月最后一天:*/ select last_day(curdate()); /*获取本月第一天:*/ select date_add(curdate(), interval - day(curdate()) + 1 day); /*获取下个月第一天:*/ select date_add(curdate() - day(curdate()) + 1, interval 1 month); /*获取本月天数:*/ select day(last_day(curdate())); /*获取一个月前那一天:*/ select date_sub(curdate(), interval 1 month); /*今天 */ select * from 表名 where to_days(时间字段名) = to_days(now()); /*昨天 */ SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 时间字段名) = 1 ; /*昨天之前 昨天 */ SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 时间字段名) > 1 ; /*明天 */ SELECT * FROM 表名 WHERE TO_DAYS( 时间字段名) - TO_DAYS( NOW( ) ) = 1 ; /*7天 */ SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(时间字段名) ; /*近30天 */ SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(时间字段名) ; /*本月 */ SELECT * FROM 表名 WHERE DATE_FORMAT( 时间字段名, '%Y%m' ) = DATE_FORMAT( CURDATE( ) , '%Y%m' ) ; /*上一月 */ SELECT * FROM 表名 WHERE PERIOD_DIFF( date_format( now( ) , '%Y%m' ) , date_format( 时间字段名, '%Y%m' ) ) =1 ; /*#查询本季度数据 */ select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(now()); /*#查询上季度数据 */ select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(DATE_SUB(now(),interval 1 QUARTER)); /*#查询本年数据 */ select * from `ht_invoice_information` where YEAR(create_date)=YEAR(NOW()); /*#查询上年数据 */ select * from `ht_invoice_information` where year(create_date)=year(date_sub(now(),interval 1 year)); /*查询当前这周的数据 */ SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now()); /*查询上周的数据 */ SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now())-1; /*查询当前月份的数据 */ select name,submittime from enterprise where date_format(submittime,'%Y-%m')=date_format(now(),'%Y-%m') ; /*查询距离当前现在6个月的数据 */ select name,submittime from enterprise where submittime between date_sub(now(),interval 6 month) and now(); /*当前日期*/ select DATE_SUB(curdate(),INTERVAL 0 DAY) ; /*明天日期*/ select DATE_SUB(curdate(),INTERVAL -1 DAY) ; /*昨天日期*/ select DATE_SUB(curdate(),INTERVAL 1 DAY) ; /*前一个小时时间*/ select date_sub(now(), interval 1 hour); /*后一个小时时间*/ select date_sub(now(), interval -1 hour); /*前30分钟时间*/ select date_add(now(),interval -30 minute); /*后30分钟时间*/ select date_add(now(),interval 30 minute); /*今天*/ select * from 表名 where to_days(时间字段名) = to_days(now()); /*昨天*/ SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 时间字段名) <= 1; /*本周*/ SELECT * FROM 表名 WHERE YEARWEEK( date_format( 时间字段名,'%Y-%m-%d' ) ) = YEARWEEK( now() ) ; /*本月*/ SELECT * FROM 表名 WHERE DATE_FORMAT( 时间字段名, '%Y%m' ) = DATE_FORMAT( CURDATE( ) ,'%Y%m' ) ; /*上一个月*/ SELECT * FROM 表名 WHERE PERIOD_DIFF(date_format(now(),'%Y%m'),date_format(时间字段名,'%Y%m')) =1; /*本年*/ SELECT * FROM 表名 WHERE YEAR( 时间字段名 ) = YEAR( NOW( ) ) ; /*上一月*/ SELECT * FROM 表名 WHERE PERIOD_DIFF( date_format( now( ) , '%Y%m' ) , date_format( 时间字段名, '%Y%m' ) ) =1; /*查询本季度数据*/ select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(now()); /*查询上季度数据*/ select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(DATE_SUB(now(),interval 1 QUARTER)); /*查询本年数据*/ select * from `ht_invoice_information` where YEAR(create_date)=YEAR(NOW()); /*查询上年数据*/ select * from `ht_invoice_information` where year(create_date)=year(date_sub(now(),interval 1 year)); /*查询当前这周的数据 */ SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now()); /*查询上周的数据*/ SELECT name,submittime FROM enterprise WHERE YEARWEEK(date_format(submittime,'%Y-%m-%d')) = YEARWEEK(now())-1; /*查询当前月份的数据*/ select name,submittime from enterprise where date_format(submittime,'%Y-%m')=date_format(now(),'%Y-%m'); /*查询距离当前现在6个月的数据*/ select name,submittime from enterprise where submittime between date_sub(now(),interval 6 month) and now(); /*查询上个月的数据*/ select name,submittime from enterprise where date_format(submittime,'%Y-%m')=date_format(DATE_SUB(curdate(), INTERVAL 1 MONTH),'%Y-%m');