SELECT * 
FROM tableName 
WHERE datecolumn >= dateadd(hour,-24,getdate())

在Oracle中(过去24小时):

SELECT  *
FROM    my_table
WHERE   date_column >= SYSDATE - 24/24

如果，出于任何原因，你有未来日期的行，你可以使用between，像这样:

SELECT  *
FROM    my_table
WHERE   date_column BETWEEN (SYSDATE - 24/24) AND SYSDATE

在SQL Server中(过去24小时):

SELECT  *
FROM    mytable
WHERE   order_date > DateAdd(DAY, -1, GETDATE()) and order_date<=GETDATE()

MySQL:

SELECT * 
FROM table_name
WHERE table_name.the_date > DATE_SUB(NOW(), INTERVAL 24 HOUR)

时间间隔可以是年、月、日、小时、分、秒

比如，在最后十分钟

SELECT * 
FROM table_name
WHERE table_name.the_date > DATE_SUB(NOW(), INTERVAL 10 MINUTE)

在postgres中，假设你的字段类型是时间戳:

Select * from date_field > (now() - interval '24小时');

在MySQL中:

SELECT  *
FROM    mytable
WHERE   record_date >= NOW() - INTERVAL 1 DAY

在SQL Server中:

SELECT  *
FROM    mytable
WHERE   record_date >= DATEADD(day, -1, GETDATE())

在Oracle中:

SELECT  *
FROM    mytable
WHERE   record_date >= SYSDATE - 1

在PostgreSQL:

SELECT  *
FROM    mytable
WHERE   record_date >= NOW() - '1 day'::INTERVAL

红移:

SELECT  *
FROM    mytable
WHERE   record_date >= GETDATE() - '1 day'::INTERVAL

SQLite:

SELECT  *
FROM    mytable
WHERE   record_date >= datetime('now','-1 day')

在MS Access中:

SELECT  *
FROM    mytable
WHERE   record_date >= (Now - 1)