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access和SqlServer 关于时间的SQL语句比较


1.1算出日期差: 
1.access:       datediff('d',fixdate,getdate()) 
2.sqlserver:    datediff(day,getdate())
 ACCESS实例:    select * from table where data=datediff('d',getdate()) 
sqlserver实例: select * from table where data=datediff(day,getdate()) 
1.2算出时间差: 
1.access:       datediff('h',getdate()) 
2.sqlserver:    datediff(Hour,'2004-12-10',getdate()) 
ACCESS实例:    select DATEDIFF('h',HMD,getdate()) 
sqlserver实例: select datediff(Hour,getdate()) 
1.3算出月份差: 
1.access:       datediff('m',getdate()) 
2.sqlserver:    datediff(Month,getdate()) 
ACCESS实例:    select DATEDIFF('m',getdate()) 
sqlserver实例: select datediff(Month,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() 

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