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 2.show parameter audit
 3.alter system set audit_sys_operations = true scope = spfile
 4.alter system set audit_trail = db,extended scope = spfile
 5.startup force
 6.show parameter audit
 7.audit select table,insert table,delete table,execute procedure by access


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  9CREATE TABLESPACE data01
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¡¡¡¡ imp estarcom/estarcom@ORACLE  tables=AA  file=C:/AAA1.dmp fromuser=estarcom touser=estarcom
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exp userid=zhongxin/zhongxin@ORACLE own ......

Oracle RETURNING INTO Ó÷¨Ê¾Àý

The RETURNING INTO clause allows us to return column values for rows affected by DML statements. The following test table is used to demonstrate this clause.
DROP TABLE t1;
DROP SEQUENCE t1_seq;
CREATE TABLE t1 (
id NUMBER(10),
description VARCHAR2(50),
CONSTRAINT t1_pk PRIMARY KEY (id) ......

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select nvl(sum(t.dwxhl),1) from tb_jhde t where zydm=-1ÕâÀï¹ØÐĵÄnvlµÄÓ÷¨£¬nvl£¨arg,value£©´ú±íÈç¹ûÇ°ÃæµÄargµÄֵΪnullÄÇô·µ»ØµÄֵΪºóÃæµÄvalue
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CREATE TABLESPACE mytablespace DATAFILE   
  'F:\oracle\product\10.2.0\oradata\myoracle\MYTABLESPACE01.DBF' SIZE 500M AUTOEXTEND ON NEXT
100M MAXSIZE UNLIMITED  
LOGGING  
PERMANENT  
EXTENT MANAGEMENT LOCAL AUTOALLOCAT ......
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