Duplicate Unique Prime Key Error Mload

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Duplicate Unique Prime Key Error In Target Table

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Failure 2801 Duplicate Unique Prime Key Error

Get Direct Link Print Email to a Friend Report Inappropriate Content ‎01-19-2006 03:46 PM ‎01-19-2006 03:46 PM duplicate unique primary key error Hi, I had to modify a column's width so i created a temporary

Duplicate Unique Key Error Wow

table, with modified column width, and populated that temporary table through (insert into temp select * from original_table).Later I dropped the original_table and renamed the temporary table to the original one. The original_table had id as the unique primary index and was defined as "Id INTEGER NOT NULL GENERATED BY DEFAULT AS IDENTITY". Now I am not able to insert data in this table manually through insert query. It gives failure 2801 in teradata me error as "duplicate unique primary key error". Any solutions to rectify this situations. Please Help!!Thanks & Regards, 0 Kudos Reply All Forum Topics Previous Topic Next Topic 2 REPLIES Fred Teradata Employee Options Mark as New Bookmark Subscribe Subscribe to RSS Feed Get Direct Link Print Email to a Friend Report Inappropriate Content ‎01-19-2006 11:00 PM ‎01-19-2006 11:00 PM Re: duplicate unique primary key error GENERATED BY DEFAULT columns are not guaranteed to be unique anyway, but if you're sure that's what you want: create another table but specify that generated values START WITH a value beyond anything already present in the table; INSERT/SELECT the data, drop old, rename again.Since you have to copy the data to a new table anyway, consider whether GENERATED ALWAYS NOCYCLE would be better for your application. (Of course, then you wouldn't use "SELECT *" because you're not allowed to specify a value to insert into that column). 0 Kudos Reply DEEPU Enthusiast Options Mark as New Bookmark Subscribe Subscribe to RSS Feed Get Direct Link Print Email to a Friend Report Inappropriate Content ‎01-20-2006 12:29 PM ‎01-20-2006 12:29 PM Re: duplicate unique primary key error Sharad,UPK error occurs only when the UPI column that you are trying to insert is alraedy pres

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us duplicate unique prime key error informatica Learn more about Stack Overflow the company Business Learn more about hiring developers or duplicate unique prime key error world of warcraft posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow teradata odbc teradata driver teradata database duplicate unique prime key error Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Teradata identity column and “Duplicate unique prime key error http://community.teradata.com/t5/Database/duplicate-unique-primary-key-error/td-p/383 in dbname.tablename” up vote 0 down vote favorite I created a table using the below definition for a Teradata identity column: ID INTEGER GENERATED BY DEFAULT AS IDENTITY (START WITH 1 INCREMENT BY 1 MINVALUE 0 MAXVALUE 100000000 NO CYCLE), ---- UNIQUE PRIMARY INDEX ( ID ) For several months, the ID column has been working properly, automatically generating a unique value for the column. Over the http://stackoverflow.com/questions/11727972/teradata-identity-column-and-duplicate-unique-prime-key-error-in-dbname-tablena past month, however, ELMAH has been intermittently reporting the following exception from our .NET 4.0 ASP.NET app: Teradata.Client.Provider.TdException: [Teradata Database] [2801] Duplicate unique prime key error in DATABASENAME.TABLENAME. I was able to replicate it by opening SQL Assistant and inserting a bunch of records into the table with raw SQL. As expected, most of the time it would insert successfully, but other times it would throw the above exception. It appears that this error is occuring because Teradata is trying to generate a value for this column that it has previously generated. Does anyone have any idea how to get to the bottom of what's happening? At the very least, I'd like some way to debug the issue a bit deeper. unique identity teradata share|improve this question asked Jul 30 '12 at 19:06 oscilatingcretin 2,8261468131 add a comment| 1 Answer 1 active oldest votes up vote 0 down vote I would suggest changing the definition of your identity column to GENERATED ALWAYS to prevent the application or ETL process from supplying a value that could have been used. In fact, it is recommended by Teradata that if you are using your IDENTITY column as part of a UPI that it should

covers a handful of the basics of the Teradata architecture, to help new Teradata users better understand what considerations should go into creating a table. Teradata Architecture Teradata uses Massively Parallel Processing (MPP) to provide linear scalability of the system by distributing http://teradata4ed.blogspot.com/2012/04/what-you-need-to-know-before-creating.html the data across a number of processing units (AMPs). Each record in a table is placed on http://www.sqlserverf1.com/tag/2801-duplicate-unique-prime-key-error-in-id-tvmid/ an AMP. The more evenly the data is distributed across the AMPs for all tables, the better the system performs, because each AMP does an equal amount of work to satisfy a query. When the data is unevenly distributed, the AMPs with the most records work harder, while the AMPs with the fewest records are underutilized. Key point: Teradata performs the best when data is evenly distributed duplicate unique Primary Index The primary index (PI) distributes the records in a table across the AMPs, by hashing the columns that make up the PI to determine which records go to which AMP. If no PI is specified when a table is created, the first column of the table will be used as the PI. When creating a table, care needs to be taken to choose a column or set of columns that evenly distribute the data across the AMPs. A PI that distributes duplicate unique prime data unevenly will at the very least impact the performance of the table, and depending on the size of the table, has the potential to negatively impact the entire system. Even distribution of the PI isn't the only criteria to use when choosing a PI. Consideration should also be given to how the data will be queried. If the data can be evenly distributed using different sets of columns, then the determination of which columns to use should be based on how the data will be queried and what other tables it will be joined to. If two tables that are frequently joined have the same PI, then joining them doesn't require the records to be redistributed to other AMPs to satisfy a query. A PI doesn't have to be the same as the primary key (PK) of a table. The purpose of a PI is to evenly distribute the data, while the purpose of a PK is to identify unique records. The PI and PK can be the same, but it isn't required. Key point: Picking the right primary index is critical to ensuring good table and system performance Skew Factor A table that has perfectly distributed data has a skew factor of 0%. The higher the skew factor is, the more unevenly data in a table is distributed. As a general rule, tables with a skew factor higher than 50% should be evaluated to determine if a different primary index would distribute the data better, and there

Tag: 2801 Duplicate unique prime key error in ID.%TVMID. Teradata SQL Error and Failure Codes from Error 2799 To 2808 March 5, 2015 SQLServerF1 Leave a comment 2799 MLoad MARK MISSING UPDATE INSERT Explanation: An MLoad apply error table row with this code marks a missing-update insert event where the row specified for update is not found in the target table and is subsequently inserted into the target table. Generated By: AMP MLoad steps For Whom: MLoad user Remedy: The MLoad user must decide if the missing row is an anomaly. In the case of this error, the mark rows for the missing update operations places nulls for the target table columns in the error table. The user may still use the contents of the error information in the error table row to perform event logging or recovery actions. 2800 Aborted due to invalidated secondary index on %DBID.%TVMID. Explanation: The table being accessed has a unique or nonunique secondary index that was invalidated as a result of one of the below operations. A restore operation with an AMP down or A rollforward operation with ’primary data’ option or A restore operation with ’no build’ option. A corruption detected during NUSI maintenance could also end up invalidating the index. * DR126850-SG210037-01 * No updates or inserts are allowed on this table until the index is built through a ’build’ statement of arcmain or dropped. Generated By: AMP Steps. For Whom: End User. Remedy: In case of AMP down, drop the invalidated secondary indexes on the table else A ’build’ statement of arcmain should follow to build the invalidated secondary indexes. No NUSI index access is allowed, the invalidated index needs to be dropped and re-created. *DR126850-SG210037-01* 2801 Duplicate unique prime key error in %DBID.%TVMID. Explanation: The request generated a row whose prime key duplicated that of an existing row in a table with a unique prime key. Generated By: AMP Steps. For Whom: End User. Remedy: Correct and resubmit the request. 2802 Duplicate row error in %DBID.%TVMID. Explanation: An update or insert request generated a row that was a duplicate of an existing row. Generated By: AMP Steps. For Whom: End User. Remedy: Correct and resubmit the request. 2803 Secondary index uniqueness violation in %DBID.%TVMID. Explanation: A row generated by the request violated the uniqueness criteria of some unique secondary index. T