比較 datetime 資料型態，別忘了0.999秒

<br />-- 從前的查詢式都是如是寫，卻會忽略掉極少部份的資料0.999秒<br />select from bill_src_tab where createtime between '2009-07-01 00:00:00' and '2009-07-31 23:59:59' <br /><br />-- 要留意0.999秒<br />select from bill_src_tab where createtime between '2009-07-01 00:00:00.000' and '2009-07-31 23:59:59.999' <br />