我应该使用where子句来获取大于创建日期的对象？

Question

In my DB the objects are saved with creation date in the format, dd-month-year hours:seconds (example 2011-12-07 09:59:41). What sql commands should I use to get objects created after April 2012?

Answer 1

-- After April 1st, including
SELECT  *
FROM    mytable
WHERE   creationDate >= CAST('2012-04-01' AS DATE)

-- After April 1st, excluding
SELECT  *
FROM    mytable
WHERE   creationDate >= '2012-04-01' + INTERVAL 1 DAY

-- After April
SELECT  *
FROM    mytable
WHERE   creationDate >= '2012-04-01' + INTERVAL 1 MONTH