?????????????SQL???????
???????????? ???????[ 2013/4/8 10:53:24 ] ????????
????????in??or??union????????????
?????????????к?????in/or/union?????????????????????С???????????????????
????1??in
????select * from video where id in(100??101??102??103??104??105??106??107??108??109)
????2??union
????select * from video where id =100
????union all select * from video where id =101
????union all select * from video where id =102
????union all select * from video where id =103
????union all select * from video where id =104
????union all select * from video where id =105
????union all select * from video where id =106
????union all select * from video where id =107
????union all select * from video where id =108
????union all select * from video where id =109
????3??or
????select * from video where id=100 or id=101 or id=102 or id=103or id=104 or id=105 or id=106 or id=107 or id=108 or id=109
?????????
????1) ???????????union???????????in/or??????????????????????????????????????union??????????????????????
????2) ????????mssql???????in??????or?????????????????????ò?????!
????3) ???in/or???????????裬????????????????????????κ???????
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