SQL Server 日期查询汇总

一、SQL获取本日、本周、本月、本季度、本年数据

本日：SELECT * FROM TableName WHERE DATEDIFF(dd, 日期字段, GETDATE()) = 0;
本月：SELECT * FROM TableName WHERE DATEDIFF(mm, 日期字段, GETDATE()) = 0; 
本周：SELECT * FROM TableName WHERE DATEDIFF(week, 日期字段, GETDATE()) = 0;
本季：SELECT * FROM TableName WHERE DATEDIFF(qq, 日期字段, GETDATE()) = 0;
本年：SELECT * FROM TableName WHERE DATEDIFF(yy, 日期字段, GETDATE()) = 0;

二、只获取日期

SELECT CONVERT(VARCHAR(10), GETDATE(), 120); 	  --当前日期 2020-03-23
SELECT CONVERT(VARCHAR(10), GETDATE(), 121); 	  --当前日期 2020-03-23
SELECT CONVERT(VARCHAR(10), GETDATE() - 1, 120);  --前一日 2020-03-22
SELECT CONVERT(VARCHAR(10), GETDATE() + 1, 120);  --后一日 2020-03-24

三、关于日期在表中查询

昨天：SELECT * FROM TableName WHERE DATEDIFF(dd, DateTimCol, GETDATE()) = 1;
明天：SELECT * FROM TableName WHERE DATEDIFF(dd, GETDATE(), DateTimCol) = 1;
最近7天：SELECT * FROM TableName WHERE DATEDIFF(dd, 时间字段, GETDATE()) <= 7;

上周：SELECT * FROM TableName WHERE DATEDIFF(week , 时间字段,GETDATE()) = 1
本周：SELECT * FROM TableName WHERE DATEDIFF(week , 时间字段,GETDATE()) = 0
下周：SELECT * FROM TableName WHERE DATEDIFF(week , 时间字段,GETDATE()) = -1

上月：SELECT * FROM TableName WHERE MONTH(日期字段) = MONTH(GETDATE()) - 1;
本月：SELECT * FROM TableName  WHERE MONTH(日期字段) = MONTH(GETDATE());
下月：SELECT * FROM TableName WHERE MONTH(日期字段) = MONTH(GETDATE()) + 1;