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sessions=1.1*processes + 5
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SQL> show parameter processes;
NAME TYPE VALUE
------------------------------------ ----------- ---------------------------------------
aq_tm_processes integer 1
db_writer_processes integer 1
job_queue_processes integer 10
log_archive_max_processes integer 1
processes integer 150
SQL> alter system set processes=400 scope = spfile;
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SQL> show parameter processes;
NAME TYPE VALUE
------------------------------------ ----------- -----------------------------------------
aq_tm_processes &n
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select job,count(empno) from emp
where job in(select job from emp group by job having min(sal)>1500)
group by job;
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select … from tablename
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connect by Ìõ¼þ2
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select * from table
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connect by prior org_id = parent_id;
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select * from emp where deptno = 20;
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update emp1
set sal = sal + 100,
comm = nvl(comm,0) + 50
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