access与SqlServer 之时间与日期及其它SQL语句比较

loveplc

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'**********************************************
'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())
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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&"'
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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
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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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