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Oracle Merge Distinct


DEST): EXEC dbms_errlog.create_error_log ('DEST') This creates a table named ERR$_DEST. Can a business owner be liable if they provide their service for free? Even if I manually insert XYZ NEWS in my table and hope merge will update time of the movie. MERGE INTO dest_Table d USING (SELECT DISTINCT (Field1), Field2 FROM Source_Table) s ON ( s.Field1 = d.Field1 ) WHEN MATCHED THEN UPDATE SET d.Field2 = s.Field2 WHEN NOT MATCHED THEN INSERT http://fullflash.net/unique-constraint/oracle-merge-statement.html

SQL> desc err$_emp; Name Null? I just went through the Concepts Manual and Kyte’s DB Architecture, but couldn’t find anything useful about index handling within a statement. –davor Dec 10 '14 at 22:14 But You can remove them from input files. I am getting this error Error: ORA-00001: unique constraint (WFUSER.XXEACCESS_CLIENTID_MONTH_PK) violated Thanks Raghu Aug 22 '07 #1 Post Reply Share this Question 6 Replies Expert 100+ P: 145 Saii Maybe you https://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:1172832500346732443

Oracle Merge Distinct

At the same time, Session2, having other (but similar) criteria, finds that A-D and B-E edges must be created. Are assignments in the condition part of conditionals a bad practice? or, Is there any specific scenario when the above Merge statement may result in a constraint violation?

Report message to a moderator Re: MERGE statement and primary key constraint violation [message #301714 is a reply to message #301711] Thu, 21 February 2008 07:53 S.Rajaram Messages: more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed So I don’t find it easy to believe that constraint checking also holds for index checking. –davor Dec 11 '14 at 9:32 And that’s not all. With this understanding, resolution of the problem is simple, butwith misplaced expectation the struggle continues.

Get Your Free Trial! Oracle Merge Statement Errata? For many… Oracle Database Some Useful Settings in JasperReports Server Article by: Doug From implementing a password expiration date, to datatype conversions and file export options, these are some useful settings http://stackoverflow.com/questions/27398276/merge-statement-unique-index-constraint-validation-per-row-or-per-statement ops$tkyte%ORA11GR1> ops$tkyte%ORA11GR1> exec print_table( 'select * from errlogTab' ); .ORA_ERR_NUMBER$ : 12899 .ORA_ERR_MESG$ : ORA-12899: value too large for column "OPS$TKYTE"."DTAB"."NAME" (actual: 15, maximum: 10) .ORA_ERR_ROWID$ : .ORA_ERR_OPTYP$ : I .ORA_ERR_TAG$

Best Regards DML Error logging restriction February 18, 2011 - 9:51 am UTC Reviewer: Houri Mohamed from France/Belgium Dear Tom, Are you aware that DML error logging doesn't work correctly with But you have many sessions in your environment. Figure 5-4 shows that the database performs the actions of the entire SQL statement before checking constraints. You have several ways depending on what you want to do with these duplicates.

Oracle Merge Statement

I'll explain this experience with simplified example. https://markhoxey.wordpress.com/2015/04/15/ora-00001-unique-key-violated-with-merge/ That is, given the same set of input data - we could come up with different "answers" depending on how the rows were accidentally processed. Oracle Merge Distinct Is it the entry of the unique index or something like that? Ora 00001 Unique Constraint Violated While Inserting It is nothing specific to merge.

when you execute the below query merge into movies M1 using movies m2 on (m2.movie_name = m1.movie_name and m2.movie_name Go to Solution 6 Comments LVL 9 Overall: Level 9 Oracle this content sql>> select count(1) from err$_t; COUNT(1) ---------- 1 Followup February 18, 2011 - 10:00 am UTC it works correctly - you are not getting an error on a ROW with an However, when i change the movie name in the 3rd line I still get ORA-00001: unique constraint . And as an answer for this observation: I can insert this record from the ERROR table into main table without causing unique constraint failure.

  • I did try running it without the ERROR LOGGING clause, but never hit any constraints.
  • By the time the statement is complete - it is all valid, but during the processing - the uniqueness of the deptno column is violated.
  • Ask Tom Sign In QuestionsArchivesPopularHotResourcesAbout QuestionsUnique Constraint violation when using merge Breadcrumb Question and Answer Thanks for the question, Wolfgang.
  • Related This entry was posted in Concurrency, Development, Oracle by Mark Hoxey.
  • It does depend on the specifics of the scenario though.
  • Thanks November 30, 2009 - 5:05 am UTC Reviewer: A reader If not LOG ERRORS, then what else?
  • So it sounds like you field1 data in your source table is not unique.

Now what's the "secret" behind this behavior and what rowid was written into the ORA_ERR_ROWID$ column? Developer was very flustered with this error and called it a bug in Oracle. It seems it is just a bug in Oracle. weblink At first the developer of the code didn't understand how a MERGE could throw ORA-00001 until I showed them the following example.

Regards Michel Report message to a moderator Re: MERGE statement and primary key constraint violation [message #301727 is a reply to message #301724] Thu, 21 February 2008 08:11 They clearly say: your SQL statement never fails unless constraints are violated at the end of the transaction execution.. Report message to a moderator Re: MERGE statement and primary key constraint violation [message #301723 is a reply to message #301719] Thu, 21 February 2008 08:06 Michel Cadot

How to overcome the problem?

What I do not understand and why this question is still not answered is why I am having these ORA-00001: unique constraint (XXX.YYY) violated errors logged while they should not be. Senior MemberAccount Moderator Quote:How to overcome the problem? But, I still don't understand why same row is getting inserted twice when XYZ NEWS don't exist in movies table. 0 LVL 9 Overall: Level 9 Oracle Database 9 Message Regards Michel Report message to a moderator Re: MERGE statement and primary key constraint violation [message #301724 is a reply to message #301711] Thu, 21 February 2008 08:07

Members Search Help Register Login Home Home» SQL & PL/SQL» SQL & PL/SQL» MERGE statement and primary key constraint violation Show: Today's Messages :: Show Polls :: Message Navigator E-mail to I'll look into it. Which column is the target primary key? http://fullflash.net/unique-constraint/unique-constraint-violated-oracle.html So easy and standard...

SQL> alter table emp 2 add constraint pk_empno primary key(empno); Table altered.