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ÐÞ¸ÄOracleµÄ½ø³ÌÊý[processes]¼°»á»°Êý[sessions]
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OracleµÄsessionsºÍprocessesµÄ¹ØÏµÊÇ
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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(empnoÔ±¹¤ºÅ/enameÔ±¹¤ÐÕÃû/job¹¤×÷/mgrÉϼ¶±àºÅ/hiredateÊܹÍÈÕÆÚ/salн½ð/commÓ¶½ð/deptno²¿ÃűàºÅ)
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select ename
from emp
where deptno = 30;
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select ename,empno,deptno
from emp
where job='CLERK';
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grant connect,resource to user;
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ALTER SESSION --Ð޸ĻỰ
CREATE CLUSTER --½¨Á¢¾Û´Ø
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create table emp1
as
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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