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----±¾Óû§ËùÓµÓеÄϵͳȨÏÞ:
select * from user_sys_privs;
---±¾Óû§¶ÁÈ¡ÆäËûÓû§¶ÔÏóµÄȨÏÞ:
¡¡select * from user_tab_privs;
-----Ìí¼ÓȨÏÞ
GRANT CREATE USER,DROP  USER,ALTER USER ,CREATE ANY VIEW ,
DROP ANY  VIEW,EXP_FULL_DATABASE,IMP_FULL_DATABASE,
DBA,CONNECT,RESOURCE,CREATE  SESSION  TO Óû§Ãû£¨accor£©
-----´´½¨ÁÙʱ±í¿Õ¼ä
create temporary tablespace accor_ts
tempfile 'd:\accorDB'   ----‘Êý¾ÝÎļþ´æ·Å·¾¶’
size 32M                ----Îļþ´óС
autoextend on
next 32M maxsize 2048M
extent management local;
----´´½¨±í¿Õ¼ä
create tablespace accor_test
datafile 'd:\accorDataBase'    ----‘Êý¾ÝÎļþ´æ·Å·¾¶’
size 32M                       ----Îļþ´óС
autoextend on
next 32M maxsize 2048M
extent management local;
-----´´½¨Óû§
create user accor identified by accor(Óû§ÃÜÂë)
default tablespace accor_test    -----ĬÈϱí¿Õ¼ä
temporary tablespace accor_ts    -----ÁÙʱ±í¿Õ¼ä
----ɾ³ýÓû§
---- Óû§Ï´æÔÚ¶ÔÏ󣬱íʾҪÁ¬´ø¶ÔÏóÒ»Æðɾ³ý
    drop user accor cascade;
  ----  ×î¿ìµÄ°ì·¨ÊÇ£º
    conn /as sysdba
    delete from user$ where name='dzysc';
    commit;
    alter system flush shared_pool;
 
----¸øÓû§ÊÚȨ
grant connect,resource,create session,dba to accor
--¸ü»»Óû§µÇ½  disconnect    
   conn username/password@ʵÀýID
select * from user_sys_privs;
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exp uat_acc/uat_acc@ACCOR file=./uat_accor_0429.dmp  owner=uat_acc;
µ¼ÈëÃüÁ
imp uat_acc2/uat_acc2@ACCOR file=./test_acc_0413.dmp  fromuser=uat_acc2 touser=uat_acc2;


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OracleµÄË÷ÒýÀàÐÍ


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Single column µ¥ÐÐË÷Òý
Concatenated ¶àÐÐË÷Òý
Unique ΨһË÷Òý
NonUnique ·ÇΨһË÷Òý
Function-basedº¯ÊýË÷Òý
Domain ÓòË÷Òý
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Partitioned ·ÖÇøË÷Òý
NonPartitioned ·Ç·ÖÇøË÷Òý
B-tree£º
Normal Õý³£ÐÍBÊ÷
Rever Key ·´×ªÐÍBÊ÷
Bitmap λͼË÷Òý
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B-tree£º
ÊʺÏÓë´óÁ¿µÄÔö¡ ......

OracleÈçºÎÖ´ÐÐÅúÁ¿sqlÓï¾ä

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1: runBatch.bat
2: sql.txt
runBatch.bat ÄÚÈÝÈçÏ£º
sqlplus username/password @sql.txt
pause
sql.txtÄÚÈÝÈçÏ£º
spool sql.log
create table t1(cname char(20));
insert into t1(cname) values('test');
select * from t1;
spool off
exit
Ë«»÷runBatch.bat¾Í¿ÉÒÔÅúÁ¿Ö´ÐÐsql.txtÖÐ ......

OracleºÍSQL serverµÄÊý¾ÝÀàÐͱȽÏ


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Oracle
SQLServer
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CHAR
CHAR
¶¼Êǹ̶¨³¤¶È×Ö·û×ÊÁϵ«oracleÀïÃæ×î´ó¶ÈΪ2kb£¬SQLServerÀïÃæ×î´ó³¤¶ÈΪ8kb
±ä³¤×Ö·ûÊý¾ÝÀàÐÍ
VARCHAR2
VARCHAR
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¸ù¾Ý×Ö·û¼¯¶ø¶¨µÄ¹Ì¶¨³¤¶È×Ö·û´®
NCHAR
NCHAR
ǰÕß×î´ó³¤¶È2kbºóÕß×î´ó³¤¶È4 ......

oracle×Ô¶¯±¸·ÝµÄÒ»¸öÅú´¦Àí


if %time:~,2% leq 9  (set hh=0%time:~1,1%) else  (set hh=%time:~,2%)
exp wzolerp/wzolerp@wzol file=E:\Êý¾Ý¿â±¸·Ý\wzolerp%date:~0,10%ÈÕ%hh%ʱ%time:~3,2%·Ö.dmp log=E:\Êý¾Ý¿â±¸·Ý\wzolerp%date:~0,10%ÈÕ%hh%ʱ%time:~3,2%·Ö.log
exp wzolwms/wzolwms@wzol file=E:\Êý¾Ý¿â±¸·Ý\wzolwms%date:~0,10%ÈÕ ......

Oracle×Ö·û´®³¤¶ÈµÄÎÊÌâ

    ½ñÌìÅöµ½Ò»¸öÎÊÌ⣬ͨ¹ýÒ»¸öSQLÓï¾ä²éѯʱ£¬³öÈçÏÂÎÊÌ⣺
       ORA-06502: PL/SQL: numeric or value error: character string buffer too small
       ORA-06512: at "WMSYS.WM_CONCAT_IMPL", line 30
 ÎÊÌâ³öÏÖÔÚͨ¹ýWMSYS. ......
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