OracleÊý¾Ý¿â±í¿Õ¼ä²Ù×÷
// ½¨Á¢±í¿Õ¼ä£¨Ö¸¶¨Îļþ·¾¶£©¡£
create TABLESPACE EAS_D_sptcc0_STANDARD DATAFILE 'F:\oracledb\EAS_D_sptcc0_STANDARD.dbf' size 10000M EXTENT MANAGEMENT local;
// ɾ³ý±í¿Õ¼ä£¨Ö¸¶¨Îļþ·¾¶£©¡£
DROP TABLESPACE temp_data INCLUDING CONTENTS AND DATAFILES;
// ½¨Á¢ÁÙʱ±í¿Õ¼ä¡£
CREATE TEMPORARY TABLESPACE EAS_D_sptcc0_STANDARD_temp TEMPFILE 'F:\oracledb\EAS_D_sptcc0_STANDARD_temp.dbf' SIZE 5000M;
// ½¨Á¢Óû§£¬ÃÜÂëÒÔ¼°Ä¬Èϵıí¿Õ¼äºÍÁÙʱ±í¿Õ¼ä¡£
create user sptcc0 identified by sptcc0 default tablespace EAS_D_sptcc0_STANDARD Temporary TABLESPACE EAS_D_sptcc0_STANDARD_temp;
// Óû§ÊÚȨ
grant connect,resource,dba to sptcc0;
// Ïòµ±Ç°±í¿Õ¼äµ¼ÈëÊý¾ÝÎļþ¡£
imp sptcc0/sptcc0@eas fromuser=sptcc touser=sptcc0 file='E:\2009-01-12_SPTCC.dmp' statistics=none
// ½¨Á¢Óû§£¬É趨ÃÜÂë¡£
create user sptcc0 identified by sptcc0;
// ÊÚȨÓû§Ó¦Óá£
grant create session to sptcc0;
grant create table to sptcc0;
grant create tablespace to sptcc0;
grant create view to sptcc0;
1.cmd
2.sqlplus
3.sptcc@eas_192.168.0.201 as sysdba
(sptcc@eas as sysdba)
password:kingdee
Ô¶³ÌÁ¬½Ó£ºadministrator
sptcc
¶ÔÖ¸¶¨µÄÓû§½øÐнâËø£º
alter user sptcc account unlock;
Task1 »Ö¸´×îвâÊÔ¿â
step1
怫sqlplus (as sysdba)
½¨Á¢±í¿Õ¼ä
create tablespace EAS_D_sptcc0_standard;
step2
ɾ³ýÒÑÓвâÊÔÓû§ drop user sptcc0 cascade;
step3
н¨²âÊÔÓû§ create user sptcc0 identified by sptcc default tablespace EAS_D_sptcc_STANDARD Temporary TABLESPACE EAS_D_sptcc_TEMP2 ;
step4
Óû§ÊÚȨ
grant connect,resource,dba to sptcc0;
Óû§ÊÚȨ²Ù×÷
step5
»Ö¸´ÕÊÌ×
imp sptcc0/sptcc@eas_192.168.0.201 fromuser=sptcc touser=sptcc0 file=D:\2009-01-12_SPTCC.dmp statistics=none
²âÊÔÓû§ÃÜÂë Ô´Êý¾ÝÓû§ µ±Ç°Êý¾ÝÓû§ Îļþ·¾¶
Ïà¹ØÎĵµ£º
ÎÒÃǾ³£Ì¸¼°OracleµÄȨÏÞ£¬±ÈÈçConnect£¬DBA£¬resource£¬ sysdba, select any
table,
select_catelog_roleÕâÑùһЩȨÏÞ£¬ÈÃÎÒÃÇÑÛ»¨çÔÂҵģ¬ÄÇôÈçºÎÀ´Çø·ÖÕâЩÖÖÀà·±¶àµÄprivilegeÖв»ÖÁÓÚÑÛÃÔÀëÄØ£¬Õâ¸öÎÄÕ½«
»á¶ÔÄãÔÚÕâ·½ÃæµÄÁ˽âÆðµ½°ïÖú¡£
ÒÔÉÏÎÒÃÇ¿´µ½µÄÕâЩȨÏÞ£¬¶¼ÊÇ¿ÉÒÔͨ¹ýg ......
MViewÖØÒªÊÓͼÔÚÔ´Êý¾Ý¿â¶ËµÄÏà¹ØÊÓͼDBA_BASE_TABLE_MVIEWSDBA_REGISTERED_MVIEWSDBA_MVIEW_LOGSÔÚMViewÊý¾Ý¿â¶ËµÄÏà¹ØÊÓͼDBA_MVIEWSDBA_MVIEW_REFRESH_TIMESDBA_REFRESHºÍDBA_REFRESH_CHILDRENMViewÏà¹Ø°üһЩMViewά»¤µÄÏà¹ØÎÊÌâSNAPSHOT vs. Materialized ViewÇåÀíÎÞЧµÄMView Log²éѯMView LogµÄ´óС¼ì²éMVµÄˢмæ ......
DECODEº¯ÊýÏ൱ÓÚÒ»Ìõ¼þÓï¾ä(IF).Ëü½«ÊäÈëÊýÖµÓ뺯ÊýÖеIJÎÊýÁбíÏà±È½Ï£¬¸ù¾ÝÊäÈëÖµ·µ»ØÒ»¸ö¶ÔÓ¦Öµ¡£º¯ÊýµÄ²ÎÊýÁбíÊÇÓÉÈô¸ÉÊýÖµ¼°Æä¶ÔÓ¦½á¹ûÖµ×é³ÉµÄÈô¸ÉÐòżÐÎʽ¡£µ±È»£¬Èç¹ûδÄÜÓëÈκÎÒ»¸öʵ²ÎÐòżƥÅä³É¹¦£¬Ôòº¯ÊýÒ²ÓÐĬÈϵķµ»ØÖµ¡£Çø±ðÓÚSQLµÄÆäËüº¯Êý£¬DECODEº¯Êý»¹ÄÜʶ±ðºÍ²Ù×÷¿ÕÖµ.
Æä¾ßÌåµÄÓï·¨¸ñʽÈçÏ£º
DE ......
¿ÉÒÔ¿´µ½MVIEWÔÚQuery RewriteÖеÄÖØÒªÐÔ, ÒªÔÚʵ¼ÊÓ¦ÓÃÖÐʹÓÃ, ¾ÍµÃÖªµÀËüµÄºÜ¶à·½Ãæ, ÆäÖÐË¢ÐÂÊÇ×îÖ÷ÒªµÄ:
1, MVIEWÈÕÖ¾µÄ½¨Á¢
2, »ã×ÜÐ͵ÄMIVEWµÄË¢ÐÂ
3, JOINÀàÐ͵ÄMVIEWµÄË¢ÐÂ
4, ¸ü¸´ÔÓµÄMVIEWµÄË¢ÐÂ
5, ·ÖÇøÊ±µÄMVIEWµÄË¢ÐÂ
ÔÚÕâ¶ùÎÒÃÇÖ÷ÒªÌÖÂÛµÄÊÇÈçºÎʵÏÖFastË¢ÐÂ, ·ñÔòûÓжàÉ ......
¶ÔÓÚÒ»¸ö¸ø¶¨µÄSQL, ºÍÏÖÓеÄMVIEW, Õâ¸öSQL¿ÉÄܱ»Rewrite, Ò²¿ÉÄܲ»Äܱ»Rewrite, ÈçºÎÕÒ³öÕâÆäÖеÄÔÒòÄØ, ¿¿¾Ñé¿ÉÒÔ½â¾öһЩÎÊÌâ, ²»¹ýËù»¨µÄʱ¼ä¾ÍÒª³¤Ò»µãÁË. ÆäʵÔÚOracleÖÐÌṩÁËÒ»¸öº¯Êý¿ÉÒÔÓÃÓÚ½âÊÍΪʲôij¸öSQL²»Äܱ»ÖØÐ´, Õâ¸ö¹ý³ÌλÓÚdbms_mviewÕâ¸ö°üÖÐ, ¹ý³ÌÃûΪexplain_rewrite, ÓÐÁËÕâ¸ö¹¤¾ß, ¿ÉÒ ......