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---SQLʵÏÖÍêÈ«ÅÅÁÐ×éºÏ
create function F_strSpit(@s varchar(200)) returns table
as
return(
select value=substring(@s,i,num)+substring(@s,num-1+j,1)
from (select num=number from spt_values where type='p' and number<len(@s) and number>0)TA,
(select i=number+1 from spt_values where type='p ......
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select pay.name,infor.AGE,PAY.MONEY,infor.email from pay join infor on infor.name=PAY.name
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select pay.name,infor.AGE,PAY.MONEY,infor.email from pay left join infor on infor.name=PAY.name
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select pay.name,info ......
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