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
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5、获取当天日期
1.access: now() //date()是日期 time()是时间 date()&" "&time()=now()
2.sqlserver: getdate()
ACCESS实例： select now()
sqlserver实例： select getdate()