1. Removing duplicate records coderanch.comHi All I am trying to write an java application which has DB2400 database. The aim of this application is following Find the duplicate records in table Write them into CSV file Keep the first records and delete the rest. eg if you find, 10 duplicate records for given criteria, keep the 1st one from the list and delete 9 records. ... |
2. problem with duplicate records coderanch.com |
3. Finding Duplicate Records coderanch.comI'm trying to clean up a database table which contains duplicate records. I want to put in a constraint so that we won't have duplicates in the future but, before I can put the constraint in place, I need to remove all the existing duplicates. I have a table that looks like this: +------+----------+------+ | ID | SomeID | myPK | ... |
4. delete duplicate records coderanch.comi've an APR_MGR table with columns as mgr_id, flag, and backupid. thr is no primary key constraints in the table. the data is like below: MgrID flag backupid 101 N null 101 N null 101 N null 102 Y 1111 103 Y 2222 now, i wud like to write a delete query, that will delete all the duplicate records of MgrID ... |
5. Batch updation failure because of duplicate records coderanch.comI'm trying to upload the records from a CSV file into the database. On the process I'm trying to validate those records extracted from the CSV file. Because of performance issue, I thought of using batch update which will return me an array of successfully loaded index. But even if there's a duplication of one record, the entire batch is failing ... |