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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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Oracle Database 10g Release 2 (10.2.0.1.0) Enterprise/Standard Edition for Microsoft Windows (32-bit)
http://download.oracle.com/otn/nt/oracle10g/10201/10201_database_win32.zip
http://download.oracle.com/otn/nt/oracle10g/10201/10201_client_win32.zip
http://download.oracle.com/otn/nt/oracle10g/10 ......
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create table person (pid int,name varchar2(20) unique,
age int check(age between 0 and 150),sex varchar(4) default 'ÄÐ',tp int,
address varchar(200),constraint person_pid_pk primary key(pid));
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insert into person values(0011,'ÁõÈý½ã',25,'ÄÐ',13930123021,'ºÓ±±Ê¡ÇúÑôÏØ');
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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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