oracle10G·ÖÇøµÄ´´½¨Óëά»¤Oracle·ÖÇø±íºÍ±¾µØË÷Òý
¡¡¡¡OracleµÄ·ÖÇø¼¼ÊõÔÚijЩÌõ¼þÏ¿ÉÒÔ¼«´óµÄÌá¸ß²éѯµÄÐÔÄÜ£¬ËùÒÔ±»¹ã·º²ÉÓᣴӲúÆ·ÉÏ˵£¬·ÖÇø¼¼ÊõÊÇOracleÆóÒµ°æÖжÀÁ¢ÊշѵÄÒ»¸ö×é¼þ¡£ÒÔÏÂÊǶÔÓÚ·ÖÇø¼°±¾µØË÷ÒýµÄÒ»¸öʾÀý¡£
¡¡¡¡OracleµÄ·ÖÇø¼¼ÊõÔÚijЩÌõ¼þÏ¿ÉÒÔ¼«´óµÄÌá¸ß²éѯµÄÐÔÄÜ£¬ËùÒÔ±»¹ã·º²ÉÓᣴӲúÆ·ÉÏ˵£¬·ÖÇø¼¼ÊõÊÇOracleÆóÒµ°æÖжÀÁ¢ÊշѵÄÒ»¸ö×é¼þ¡£ÒÔÏÂÊǶÔÓÚ·ÖÇø¼°±¾µØË÷ÒýµÄÒ»¸öʾÀý¡£
¡¡¡¡Ê×Ïȸù¾Ý×Öµä±í´´½¨Ò»¸ö²âÊÔ·ÖÇø±í£º
SQL> connect eygle/eygle
¡¡¡¡Connected.
¡¡¡¡SQL> CREATE TABLE dbobjs
¡¡¡¡2 (OBJECT_ID NUMBER NOT NULL,
¡¡¡¡3 OBJECT_NAME varchar2(128),
¡¡¡¡4 CREATED DATE NOT NULL
¡¡¡¡5 )
¡¡¡¡6 PARTITION BY RANGE (CREATED)
¡¡¡¡7 (PARTITION dbobjs_06 VALUES LESS THAN (TO_DATE('01/01/2007', 'DD/MM/YYYY')),
¡¡¡¡8 PARTITION dbobjs_07 VALUES LESS THAN (TO_DATE('01/01/2008', 'DD/MM/YYYY')));
¡¡¡¡Table created.
¡¡¡¡SQL> COL segment_name for a20
¡¡¡¡SQL> COL PARTITION_NAME for a20
¡¡¡¡SQL> SELECT segment_name, partition_name, tablespace_name
¡¡¡¡2 from dba_segments
¡¡¡¡3 WHERE segment_name = 'DBOBJS';
¡¡¡¡SEGMENT_NAME PARTITION_NAME TABLESPACE_NAME
¡¡¡¡-------------------- -------------------- ------------------------------
¡¡¡¡DBOBJS DBOBJS_06 EYGLE
¡¡¡¡DBOBJS DBOBJS_07 EYGLE
¡¡¡¡´´½¨Ò»¸öLocalË÷Òý£¬×¢ÒâÕâÀï¿ÉÒÔ½«²»Í¬·ÖÇøµÄË÷ÒýÖ¸¶¨´´½¨µ½²»Í¬µÄ±í¿Õ¼ä£º
SQL> CREATE INDEX dbobjs_idx ON dbobjs (created) LOCAL
¡¡¡¡2 (PARTITION dbobjs_06 TABLESPACE users,
¡¡¡¡3 PARTITION dbobjs_07 TABLESPACE users
¡¡¡¡4 );&nbs
Ïà¹ØÎĵµ£º
oracle±í¿Õ¼ä²Ù×÷Ïê½â
1
2
3×÷Õߣº À´Ô´£º ¸üÐÂÈÕÆÚ£º2006-01-04
5
6
7½¨Á¢±í¿Õ¼ä
8
9CREATE TABLESPACE data01
10DATAFILE '/ora ......
ROLLUP£¬ÊÇGROUP BY×Ó¾äµÄÒ»ÖÖÀ©Õ¹£¬¿ÉÒÔΪÿ¸ö·Ö×é·µ»ØС¼Æ¼Ç¼ÒÔ¼°ÎªËùÓзÖ×é·µ»Ø×ܼƼǼ¡£
CUBE£¬Ò²ÊÇGROUP BY×Ó¾äµÄÒ»ÖÖÀ©Õ¹£¬¿ÉÒÔ·µ»Øÿһ¸öÁÐ×éºÏµÄС¼Æ¼Ç¼£¬Í¬Ê±ÔÚĩβ¼ÓÉÏ×ܼƼǼ¡£
ÔÚÎÄÕµÄ×îºó¸½ÉÏÁËÏà¹Ø±íºÍ¼Ç¼´´½¨µÄ½Å±¾¡£
1¡¢ÏòROLLUP´«µÝÒ»ÁÐ
SQL> select division_id,sum(salary)
2  ......
ËäÈ»±¾ÈËûÓÐÑéÖ¤¹ý,²»¹ý¾Ý˵ͨ¹ýADODB·ÃÎÊOracle¶ÔÐÔÄÜÓ°ÏìºÜС.¶øÇÒADODB±ÈOCI8Ò²Òª·½±ãºÜ¶à,±Ï¾¹Ðí¶à¶«Î÷¶¼Ôٴηâ×°¹ý.²»¹ý²»¹ÜÔõô˵ÕⶼÔÚÖмäÓÖ¼ÓÉÏÁËÒ»²ã,ÀíÂÛÉÏÀ´Ëµ³öÏÖÎÊÌâµÄ¼¸Âʺͽâ¾öÎÊÌâµÄÄѶȶ¼±ä´óÁË.¶øOracleÓÖ¾³£ÓÃÔÚ²»ÄÜËæ±ã³öÎÊÌâµÄ»·¾³,ËùÒÔÏë±ØÏëÒªÖ±½ÓʹÓÃOCIµÄÇé¿öÒ²²»ÉÙ.ÒÔϾÍÊÇÎÒµÄÀý×Ó:
<?p ......
OracleûÓÐ×Ô¶¯Ôö³¤µÄÊý¾ÝÀàÐÍ£¬ÎÒÃÇÐèÒª½¨Á¢Ò»¸ö×Ô¶¯Ôö³¤µÄÐòÁкţ¬²åÈë¼Ç¼ʱҪ°ÑÐòÁкŵÄÏÂÒ»¸öÖµ¸³ÓÚ´Ë×ֶΣ¡
create sequence type_id increment by 1 start with 1;
Õâ¾äÖУ¬type_idΪÐòÁкŵÄÃû³Æ£¬Ã¿´ÎÔö³¤Îª1£¬ÆðʼÐòºÅΪ1¡£
Èç¹ûҪɾ³ýÐòÁУ¬ÓÃdrop sequence ÐòÁÐÃû¾Í¿ÉÒÔÁË£¡£¡
ÐòÁпÉÒÔ±£Ö¤¶à¸öÓû§¶ÔÍ¬Ò»Õ ......
×òÌìÃæÊÔ±»Îʵ½ÁË·Ö¶Îͳ¼Æ,ÎÒÖªµÀdecode¿ÉÒÔ,ÃæÊÔ¹Ù½Ó×ÅÒªÎÒ˵decodeµÄÓï·¨,û»Ø´ðÉÏÀ´.´ÓÍøÉÏÕÒµÄ×ÊÁÏÉÔ΢¸ÄÁËÒ»ÏÂ.
DECODEº¯ÊýÊÇORACLE PL/SQLÊǹ¦ÄÜÇ¿´óµÄº¯ÊýÖ®Ò»£¬Ä¿Ç°»¹Ö»ÓÐORACLE¹«Ë¾µÄSQLÌṩÁ˴˺¯Êý£¬ÆäËûÊý¾Ý¿â³§É̵ÄSQLʵÏÖ»¹Ã»Óд˹¦ÄÜ¡£
&nb ......