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mysql查询当天、昨天、本周、上周、近7天、近30天、本月、上个月、近6个月、本季度、上季度、本年和去年的数据
注意
在 XML 中
< 应该转为 <
当天
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());
上周
SELECT * FROM 表名 WHERE YEARWEEK(DATE_FORMAT(时间字段名,'%Y-%m-%d')) = YEARWEEK(NOW())-1;
近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');
上个月
SELECT * FROM 表名 WHERE PERIOD_DIFF(DATE_FORMAT(NOW(),'%Y%m'),DATE_FORMAT(时间字段名,'%Y%m')) = 1;
SELECT * FROM 表名 WHERE DATE_FORMAT(时间字段名,'%Y%m') = DATE_FORMAT(CURDATE(),'%Y%m') ;
SELECT * FROM 表名 WHERE WEEKOFYEAR(FROM_UNIXTIME(时间字段名,'%y-%m-%d')) = WEEKOFYEAR(NOW());
SELECT * FROM 表名 WHERE MONTH(FROM_UNIXTIME(时间字段名,'%y-%m-%d')) = MONTH(NOW());
SELECT * FROM 表名 WHERE YEAR(FROM_UNIXTIME(时间字段名,'%y-%m-%d')) = YEAR(NOW()) AND MONTH(FROM_UNIXTIME(时间字段名,'%y-%m-%d')) = MONTH(NOW());
近6个月
SELECT * FROM 表名 WHERE 时间字段名 BETWEEN DATE_SUB(NOW(),INTERVAL 6 MONTH) AND NOW();
本季度
SELECT * FROM 表名 WHERE QUARTER(时间字段名) = QUARTER(NOW());
上季度
SELECT * FROM 表名 WHERE QUARTER(时间字段名) = QUARTER(DATE_SUB(NOW(),INTERVAL 1 QUARTER));
本年
SELECT * FROM 表名 WHERE YEAR(时间字段名)=YEAR(NOW());
去年
SELECT * FROM 表名 WHERE YEAR(时间字段名) = YEAR(DATE_SUB(NOW(),INTERVAL 1 YEAR));
Oracle几个常用的日期计算SQL示例
1、查询上月的所有日期：SELECT TO_CHAR (TRUNC (TRUNC (SYSDATE, 'MM') - 1, 'month') + LEVEL - 1,'yyyy-MM-dd')AS month_dayFROM DUALCONNECT BY LEVEL <= TO_CHAR (LAST_DAY (TRUNC (SYSDATE, 'MM') - 1), 'dd');2、查询当月的所有日期：SELECT TO_CHAR (TRUNC (SYSDATE, 'month') + LEVEL - 1,'yyyy-MM-dd')AS month_dayFROM DUALCONNECT BY LEVEL <= TO_CHAR (LAST_DAY (TRUNC (SYSDATE, 'MM') - 1), 'dd');3、查询上月月份：SELECT TO_CHAR(ADD_MONTHS(SYSDATE,-1),'YYYY-MM') FROM DUAL; 4、查询当月天数：SELECT TO_CHAR (LAST_DAY (TRUNC (SYSDATE, 'mm')), 'DD') mounth_countFROM DUAL;5、查询当月第一天：SELECT TRUNC (SYSDATE, 'month') FROM DUAL;6、查询当月最后一天：SELECT TO_CHAR (LAST_DAY (SYSDATE), 'YYYY-MM-DD') FROM DUAL;7、计算两个日期之间天数：SELECT TO_DATE ('2013-08-05', 'yyyy-MM-dd')- TO_DATE ('2013-08-01', 'yyyy-MM-dd')+ 1AS count_dayFROM DUAL;8、查询两个日期之间的所有日期：SELECT ROWNUM, TO_DATE ('2013-01-02', 'yyyy-MM-dd') + ROWNUM - 1 AS alldayFROM DUALCONNECT BY ROWNUM <TO_DATE ('2013-01-07', 'yyyy-MM-dd')- TO_DATE ('2013-01-02', 'yyyy-MM-dd')+ 2;