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select * into newtable form oldtable;°Ñoldtabel¸´ÖƵ½newtableÇÒnewtable²»´æÔÚ,·ñÔò³ö´í.;
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create table tb(id varchar(3) , pid varchar(3) , name varchar(10))
insert into tb values('001' , null  , '¹ã¶«Ê¡')
insert into tb values('002' , '001' , '¹ãÖÝÊÐ')
insert i ......

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"Select * from users where name='"+uName+"' and pwd='"+uPwd+"' " ......

oracle sql tuning

alert index mem_ct monitoring usage;
desc v$object_usage;
set linesize 190
select * from v$object_usage;
SQL>SET AUTOTRACE ON;
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¡¡¡¡SQL> set timing on;
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Create proc [dbo].[proUniteRow]
@tab varchar(30),           --±íÃû
@col varchar(30),           --ºÏ²¢µÄÁÐÃû
@where varchar(2000),     &nbs ......
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