Re: How to create 2 unique indexes (Field1, Field2) and (Field1, Fiel
Advice? Yes -- find out which records in your table have the duplicate combination of ACCTNO,PAYGRP and either delete the duplicate row, correct the problem row or don't create a unique index From: CHAN Chor Ling Catherine (CSC) [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Subject: How to create 2 unique indexes (Field1, Field2) and (Field1, Fiel Date: Wed, 30 May 2001 17:55:21 -0800 Hi Gurus, How do I create 2 unique indexes (STDID,PAYGRP) and (ACCTNO,PAYGRP) on the same table ? I created the first index successfully but encountered the error ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found when I tried to create the 2nd index. SELECT INDEX_NAME,TABLE_NAME,UNIQUENESS FROM USER_INDEXES WHERE TABLE_NAME='SPY_ADHOC_PAYMENT' INDEX_NAME TABLE_NAME UNIQUENES -- -- - U_SPYADH_1 SPY_ADHOC_PAYMENT UNIQUE SQL SELECT * FROM USER_IND_COLUMNS WHERE TABLE_NAME='SPY_ADHOC_PAYMENT'; INDEX_NAME TABLE_NAME COLUMN_NAME -- -- -- U_SPYADH_1 SPY_ADHOC_PAYMENT STDID U_SPYADH_1 SPY_ADHOC_PAYMENT PAYGRP SQL CREATE UNIQUE INDEX U_SPYADH_2 ON SPY_ADHOC_PAYMENT (ACCTNO,PAYGRP); CREATE UNIQUE INDEX U_SPYADH_2 ON SPY_ADHOC_PAYMENT (ACCTNO,PAYGRP) * ERROR at line 1: ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found Any advice ? Thanks. Regds, New Bee -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: CHAN Chor Ling Catherine (CSC) INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). _ Get your FREE download of MSN Explorer at http://explorer.msn.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rachel Carmichael INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: How to create 2 unique indexes (Field1, Field2) and (Field1, Fiel
CHAN Chor Ling Catherine (CSC) wrote: Hi Gurus, How do I create 2 unique indexes (STDID,PAYGRP) and (ACCTNO,PAYGRP) on the same table ? I created the first index successfully but encountered the error ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found when I tried to create the 2nd index. SELECT INDEX_NAME,TABLE_NAME,UNIQUENESS FROM USER_INDEXES WHERE TABLE_NAME='SPY_ADHOC_PAYMENT' INDEX_NAME TABLE_NAME UNIQUENES -- -- - U_SPYADH_1 SPY_ADHOC_PAYMENT UNIQUE SQL SELECT * FROM USER_IND_COLUMNS WHERE TABLE_NAME='SPY_ADHOC_PAYMENT'; INDEX_NAME TABLE_NAME COLUMN_NAME -- -- -- U_SPYADH_1 SPY_ADHOC_PAYMENT STDID U_SPYADH_1 SPY_ADHOC_PAYMENT PAYGRP SQL CREATE UNIQUE INDEX U_SPYADH_2 ON SPY_ADHOC_PAYMENT (ACCTNO,PAYGRP); CREATE UNIQUE INDEX U_SPYADH_2 ON SPY_ADHOC_PAYMENT (ACCTNO,PAYGRP) * ERROR at line 1: ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found Any advice ? Thanks. Regds, New Bee Catherine, To solve this type of problem it may be easier to create a UNIQUE CONSTRAINT (which creates a unique index behind the scene) than creating the index directly. The reason is that if you run a script named (out of memory) utlexcpt.sql located under $ORACLE_HOME/rdbms/admin you can create a table EXCEPTIONS which will hold pointers to duplicate rows and which you can populate using ALTER TABLE ... ADD CONSTRAINT ... EXCEPTIONS INTO EXCEPTIONS (by the way always name your constraint and specify USING INDEX). You can then clean-up your data using CREATE TABLE PROBLEM_LINES AS SELECT * FROM your table WHERE ROWID IN (SELECT ROW_ID FROM EXCEPTIONS); Then, in your case, check that you have TRUE duplicates in PROBLEM_LINES. If this is the case you can do : DELETE your table WHERE ROWID IN (SELECT ROW_ID FROM EXCEPTIONS); INSERT INTO your table SELECT DISTINCT * FROM PROBLEM_LINES; This is, I think, cleaner than a group by of death to try to identify duplicates, especially if your table is big. -- Regards, Stephane Faroult Oriole Corporation Voice: +44 (0) 7050-696-269 Fax:+44 (0) 7050-696-449 Performance Tools Free Scripts -- http://www.oriole.com, designed by Oracle DBAs for Oracle DBAs -- -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Stephane Faroult INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
How to create 2 unique indexes (Field1, Field2) and (Field1, Fiel
Hi Gurus, How do I create 2 unique indexes (STDID,PAYGRP) and (ACCTNO,PAYGRP) on the same table ? I created the first index successfully but encountered the error ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found when I tried to create the 2nd index. SELECT INDEX_NAME,TABLE_NAME,UNIQUENESS FROM USER_INDEXES WHERE TABLE_NAME='SPY_ADHOC_PAYMENT' INDEX_NAME TABLE_NAME UNIQUENES -- -- - U_SPYADH_1 SPY_ADHOC_PAYMENT UNIQUE SQL SELECT * FROM USER_IND_COLUMNS WHERE TABLE_NAME='SPY_ADHOC_PAYMENT'; INDEX_NAME TABLE_NAME COLUMN_NAME -- -- -- U_SPYADH_1 SPY_ADHOC_PAYMENT STDID U_SPYADH_1 SPY_ADHOC_PAYMENT PAYGRP SQL CREATE UNIQUE INDEX U_SPYADH_2 ON SPY_ADHOC_PAYMENT (ACCTNO,PAYGRP); CREATE UNIQUE INDEX U_SPYADH_2 ON SPY_ADHOC_PAYMENT (ACCTNO,PAYGRP) * ERROR at line 1: ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found Any advice ? Thanks. Regds, New Bee -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: CHAN Chor Ling Catherine (CSC) INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
