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select count(1) from dictionary;
select * from dba_data_files;
select count(1) from dba_objects t where t.owner='BESTTONE';
select * from dba_tablespaces t where t.tablespace_name='BESTTONE';
select count(1) from dba_tables t where t.owner='BESTTONE';
select t.table_name,t.comments from dictionary  t where t.table_name like 'V$%';
select * from dba_constraints;
select * from dba_cons_columns;
select * from dba_tablespaces t where t.tablespace_name='SIM002';
CREATE TABLESPACE SS DATAFILE 'D:\ORACLE\ORADATA\BSTO\SS.DBF' SIZE 1M;
SELECT T.tablespace_name, T.status from DBA_TABLESPACES T;
SELECT T.TABLESPACE_NAME,T.FILE_NAME from DBA_DATA_FILES T;
ALTER TABLESPACE SIM002 OFFLINE;
ALTER TABLESPACE SIM002 ONLINE;
SELECT T.os_username,
       T.username,
       T.terminal,
       DECODE(T.returncode,
              '0',
              'Connected',
              '1005',
              'failedNull',
              '1017',
              'failed'),
       to_char(t.timestamp, 'dd-mon-yy hh24:mi:ss'),
       to_char(t.logoff_time, 'dd-mon-yy hh24:mi:ss')
  from DBA_AUDIT_SESSION T;--³¢ÊԵǽÉó¼Æ
select t.action,t.name  from audit_actions t;
select * from dba_audit_object;
select * from v$sesstat;
select a.sid,a.value "total cpu time" from v$sesstat a ,v$statname b
where a.STATISTIC#=b.STATISTIC# and b.NAME='cpu used by this session'
order by a.sid;--»á»°¼¶·þÎñʱ¼äÖµ
select sum(time_waited) &quo


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Îļþoracle_cool_backup.bat£¬ÄÚÈÝÈçÏ£º
Remark ¶¨Òåʱ¼äÈÕÆÚ±äÁ¿
set date=%date:~0,10%
set h=%time:~0,2%
set m=%time:~3,2%
set s=%time:~6,2%
set tempvar=%date%-%h%-%m%-%s%
md "c:/temp/%tempvar%/"
echo %tempvar%
sqlplus /nolog @oracle_cool_backup.sql % ......

ÍæתOracle£¨7£©

||-------  pl/sql »ù´¡ -------||
pl/procedural language ¹ý³ÌÓïÑÔ
//´´½¨±í
SQL> create table mytest(
  2  name varchar2(30),
  3  pwd varchar2(30));
//´´½¨¹ý³Ì
create procedure sp_pro1 is
create or replace procedure sp_pro1 is --Èç¹û´æÔÚ¼´ ......

SQL Server 2005È«ÎļìË÷¼¼ÊõÔÚÍøÕ¾ÉϵÄÓ¦ÓÃʵ¼


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oracle sql*plus set &spool½éÉÜ(Ò»)

1). ÉèÖõ±Ç°sessionÊÇ·ñ¶ÔÐ޸ĵÄÊý¾Ý½øÐÐ×Ô¶¯Ìá½» :SET AUTO[COMMIT] {ON|OFF|IMM[EDIATE]| n}
SQL> set autocommit off
2)£®ÔÚÓÃstartÃüÁîÖ´ÐÐÒ»¸ösql½Å±¾Ê±£¬ÊÇ·ñÏÔʾ½Å±¾ÖÐÕýÔÚÖ´ÐеÄSQLÓï¾ä :SET ECHO {ON|OFF}
SQL> set echo on
3).ÊÇ·ñÏÔʾµ±Ç°sqlÓï¾ä²éѯ»òÐ޸ĵÄÐÐÊý
SQL> SET FEED[BACK] {6|n|O ......
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