access与SqlServer 之时间与日期及其它SQL语句比较

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loveplc | 2008-4-12 05:09:00 | 显示全部楼层

access与SqlServer 之时间与日期及其它SQL语句比较

<%
'**********************************************
'小结:access与SqlServer 之时间与日期及其它SQL语句比较
'作者:flashasp,工作中总结
'**********************************************
1、Datediff:

1.1算出日期差:
1.access:       datediff('d',fixdate,getdate())
2.sqlserver:    datediff(day,fixdate,getdate())
ACCESS实例:    select * from table where data=datediff('d',fixdate,getdate())
sqlserver实例: select * from table where data=datediff(day,fixdate,getdate())

1.2算出时间差:
1.access:       datediff('h',fixdate,getdate())
2.sqlserver:    datediff(Hour,'2004-12-10',getdate())
ACCESS实例:    select DATEDIFF('h',HMD,getdate())
sqlserver实例: select datediff(Hour,'2004-12-10',getdate())

1.3算出月份差:
1.access:       datediff('m',fixdate,getdate())
2.sqlserver:    datediff(Month,'2004-12-10',getdate())
ACCESS实例:    select DATEDIFF('m',HMD,getdate())
sqlserver实例: select datediff(Month,'2004-12-10',getdate())
----------------------------------------------------------------------------

2、日期变量
1.access:       #"&data&"#
2.sqlserver:    '"&data&"'
ACCESS实例:    select * from table where data=#"&data&"#
sqlserver实例: select * from table where data='"&data&"'
----------------------------------------------------------------------------

3、是否
1.access:       not finished
2.sqlserver:    finished=0
ACCESS实例:    select * from table where not finished
sqlserver实例: select * from table where finished=0
----------------------------------------------------------------------------

4、求余数

1.access:       a mod b=100
2.sqlserver:    a  % b  =100
ACCESS实例:    select   a mod b=100 from table where not finished
sqlserver实例: select a  % b  =100  from table where finished=0
----------------------------------------------------------------------------

5、获取当天日期
1.access:       now()
2.sqlserver:    getdate()
ACCESS实例:    select   now()
sqlserver实例: select getdate()
----------------------------------------------------------------------------
%> 

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