Rumah >pangkalan data >tutorial mysql >access与SqlServer 时间日期比较
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 tabl
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()
2.sqlserver: getdate()
ACCESS实例: select now()
sqlserver实例: select getdate()