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export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/8.1.7
export PATH=$PATHORACLE_HOME/bin
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/usr/lib
export ORACLE_SID=cams
export ORACLE_TERM=vt100
export ORA_NLS33=$ORACLE_HOME/ocommon/nls/admin/data
export NLS_LANG=AMERICAN.ZHS16CGB231280
& ˵Ã÷
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create or replace procedure proc_dropifexists(
p_table in varchar2
) is
v_count number(10);
begin
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select ename,sal
from emp join
(
select max(sal) max_sal, deptno
from emp
group by deptno
) t
on (emp.sal = t.max_sal and emp.deptno = t.deptno);
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select deptno, avg_sal, grade ......