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select * from tb_ai03
create table tb_ai031 as select * from tb_ai03
delete from tb_ai03 a where a.yymm in ('200911','200910')
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select a.model,a.yysal/b.unitestrip as yysal ,a.mmsal/b.unitestrip as mmsal,
a.yychu/b.unitestrip as yychu,a.mmchu/b.unitestrip as mmchu,a.yymm
from tb_ld04 b,tb_ai031 a
where a.model=b.model(+) and a.yymm in ('200911','200910')
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oracle-instantclient-basic-10.2.0.4-1.i386.rpm
oracle-instantclient-sqlplus-10.2.0.4-1.i386.rpm
oracle-instantclient-devel-10.2.0.4-1.i386.rpm
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What circumstances we use ALL_ROWS and what circumstances we use FIRST_ROWS optimizer mode? This article is written in oracle9i.
First_rows attempts to optimize the query to get the very first row back to the client as fast as possible. This is good for an interactive client server environment wher ......
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