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create sequence JOBSEQ
minvalue 1
maxvalue 999999999999
start with 1
increment by 1
cache 20;
À´ÖØÐ¿ªÊ¼JOBID¡£
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UPDATE sys.Job$
SET job=5 WHERE job=62;
COMMIT;
¿ÉÒÔÓÃisubmitÀ´Ö¸¶¨JOBID½¨JOB


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grant connect,resource to user;
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ALTER SESSION --Ð޸ĻỰ
CREATE CLUSTER --½¨Á¢¾Û´Ø
CREATE DATABASE LINK --½¨Á¢Êý¾Ý¿âÁ´½Ó
CREATE SEQUENCE --½¨Á¢ÐòÁÐ
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OracleÖÐstart with¡­connect by prior×Ó¾äÓ÷¨

OracleÖÐstart with…connect by prior×Ó¾äÓ÷¨
connect by Êǽṹ»¯²éѯÖÐÓõ½µÄ£¬Æä»ù±¾Óï·¨ÊÇ£º
select … from tablename
start with Ìõ¼þ1
connect by Ìõ¼þ2
where Ìõ¼þ3;
Àý£º
select * from table
start with org_id = ‘HBHqfWGWPy’
connect by prior org_id = parent_id;
  ......

OracleÖÐÖ»¸üÐÂÁ½Õűí¶ÔÓ¦Êý¾ÝµÄ·½·¨

OracleÖÐÖ»¸üÐÂÁ½Õűí¶ÔÓ¦Êý¾ÝµÄ·½·¨
ÏȽ¨Á¢Ò»¸ö½á¹¹Ò»Ä£Ò»ÑùµÄ±íemp1£¬²¢ÎªÆä²åÈ벿·ÖÊý¾Ý
create table emp1
as
select * from emp where deptno = 20;
updateµôemp1ÖеIJ¿·ÖÊý¾Ý
update emp1
set sal = sal + 100,
comm = nvl(comm,0) + 50
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oracleÈçºÎ¼Ç¼Óû§µÄµÇ½ÐÅÏ¢
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´´½¨Ò»ÕżÇ¼µÇ¼TABLE£¬ÈçÏ£º 
CREATE TABLE SYSTEM.LOGIN_LOG
(
    SESSION_ID               &nb ......

oracle Óû§¹ÜÀí

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conn / as sysdba;
create user t1 identified by t1;
create user t2 identified by t2;
grant connect to t1,t2;
grant create table, create view to t1 with admin option;
conn t1/t1
grant create table to t2;
conn / as sysdba;
select * from dba_sys_privs where gra ......
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