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DIM-00002: ÓÐЧµÄÃüÁî°üÀ¨: -DELETE, -EDIT, -NEW, -STARTUP ºÍ -SHUTDOWN
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-NEW -SID sid | -SRVC service [-INTPWD password] [-MAXUSERS number] [-STARTM
ODE a|m] [-PFILE file] [-TIMEOUT secs]
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-EDIT -SID sid [-NEWSID sid] [-INTPWD passwd]
[-STARTMODE a|m] [-PFILE file] [-
SHUTMODE a|i|n] [-SHUTTYPE srvc|inst]
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-DELETE -SID sid | -SRVC service name
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-STARTUP -SID sid [-USRPWD password] [-STARTTYPE srvc|inst
|srvc,inst] [-PFILE filename]
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-SHUTDOWN -SID sid [-USRPWD password]
[-SHUTTYPE srvc|inst|srvc,inst] [-SHUT
MODE a | i | n]
¡¡¡¡Í¨¹ýÖ¸¶¨ÒÔϲÎÊý²éѯ°ïÖú: -? | -h | -help
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-startup -sid ldydb -starttype srvc
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C:Documents and SettingsAdministrator>sqlplus /nolog
SQL*Plus: Release 9.2.0.1.0 - Production on ÐÇÆÚÎå 9ÔÂ 21 13:12:08 2007
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
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1. RANK ( ) OVER ( [query_partition_clause] order_by_clause )
RANK ( ) OVER ( [query_p ......
TO_DATE¸ñʽ
Day:
dd number 12
dy abbreviated fri
day spelled out friday
ddspth spelled out, ordinal twelfth
Month:
mm number 03
mon abbreviated mar
month spelled out march
Year:
yy two digits 98  ......
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Creating User-Defined Operators: Example
This example creates a very simple functional implementation of equality and then creates an operator that uses the function:
CREATE FUNCTION eq_f(a VARCHAR2, b VARCHA ......
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×îºÃÉèÖÃÒ»¸ö±£´æµã£¬Àýsavepoint a,»òÕßÖ´ÐÐ exec dbms_transaction.savepoint('a')(Ö´ÐÐǰÐèÒªÖ´ÐÐset serveroutput onÓï¾ä)£»È¡Ïû²¿·ÖÊÂÎñ¾Í¿ÉÒÔʹÓÃrollback to a,»òÕßÖ´ÐÐexec dbms_transaction.rollback_savepoint('a');È¡ÏûÈ«²¿ÊÂÎñ¿ÉÒÔÖ´ÐÐrollback,»òÕßexec dbms_transaction.rollback;
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