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 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 WHERE ROWID IN (SELECT ROW_ID FROM EXCEPTIONS); INSERT INTO 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).
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,
Hi, I would like to thank those who replied. Yes, my problem has been resolved after removing duplicate values in the table. 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).
RE: How to create 2 unique indexes (Field1, Field2) and (Field1,
Title: RE: How to create 2 unique indexes (Field1, Field2) and (Field1, Fiel > -Original Message- > From: CHAN Chor Ling Catherine (CSC) [mailto:[EMAIL PROTECTED]] > > 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 You are getting an error because you are trying to create an index on columns that don't have unique values. Example: SQL> create table t (a number, b number, c number) ; Table created. SQL> insert into t (a, b, c) values (1, 2, 3) ; 1 row created. SQL> create unique index t_u1 on t (a, b) ; Index created. SQL> create unique index t_u2 on t (b, c) ; Index created. SQL> drop index t_u2 ; Index dropped. SQL> insert into t (a, b, c) values (4, 2, 3) ; 1 row created. SQL> create unique index t_u2 on t (b, c) ; create unique index t_u2 on t (b, c) * ERROR at line 1: ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found -- Jacques R. Kilchoer (949) 754-8816 Quest Software, Inc. 8001 Irvine Center Drive Irvine, California 92618 U.S.A. http://www.quest.com
RE: How to create 2 unique indexes (Field1, Field2) and (Field1,
Hi, The second index failed because of dups found. You will need to check the data and correct them before creating the index. The following should tell you which ones have dupl. values and how many occured: SELECT ACCTNO,PAYGRP,count(*) from SPY_ADHOC_PAYMENT group by ACCTNO,PAYGRP having count(*) > 1; HTH, Ross > -Original Message- > From: CHAN Chor Ling Catherine (CSC) [mailto:[EMAIL PROTECTED]] > Sent: Thursday, 31 May 2001 11:55 > To: Multiple recipients of list ORACLE-L > Subject: 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). > -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Ross Collado 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).
