sql 獲取最近7天的數據

1、獲取最近7天的數據

SELECT * FROM "表名"
WHERE 
DATE_SUB( CURDATE( ), INTERVAL 7 DAY ) <= date( "時間列名") ) 

2、獲取最近7天的數據並且按照天來分組

SELECT
DATE_FORMAT( "時間列名", '%Y-%m-%d' ) days,
count(*) count 
FROM

( SELECT * FROM "表名"
WHERE DATE_SUB( CURDATE( ), INTERVAL 7 DAY ) <= date( "時間列名") ) as "表別名"

GROUP BY
days;