????????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???????

????????η????????????￡?д????????????лл!