ORA-00001: unique constraint (string.string) violated

The ORA-00001: unique constraint (string.string) violated error comes when you try to update or insert a record in a table(Oracle Database) that creates a duplicate on the columns which are defined as unique. As per Oracle error message guide, ORA-00001: unique constraint (string.string) violatedCause: An UPDATE or INSERT statement attempted to insert a duplicate key. For

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ORA-12841: Cannot Alter The Session Parallel DML State Within A Transaction

The ORA-12841: Cannot Alter The Session Parallel DML State Within A Transaction error comes when you issue alter session enable parallel DML command when some transaction like an update, insert, delete is in progress. A transaction completes when you either issue Commit or Rollback. As per Oracle Error Message Guide, ORA-12841: Cannot alter the session

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How to enable Trace Concurrent Program in Oracle Apps

This article explains, how to enable trace for Concurrent Program and generate TKPROF in Oracle Apps. These steps should work for Oracle Apps 11i and R12 release. Concurrent programs execute business logic by connecting to the database and performing database operations like updating, inserting, and deleting. These operations consume CPU, Memory, and other resources. An

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FRM-10102: Cannot attach PL/SQL library APPCORE. This library attachment will be lost if the module is saved.

FRM-10102: Cannot attach PL/SQL library APPCORE. This library attachment will be lost if the module is saved error tells you that Form Builder is not able to attach the concerned library (XXX) when you open the TEMPLATE.fmb Form in Oracle Apps or forms_path is incorrect or missing. Where XXX library could be any of these

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ORA-12154: TNS could not resolve the connect identifier specified

ORA-12154: TNS could not resolve the connect identifier specified error comes when you try to connect to Oracle database using clients/tools like SQL Plus, Toad, Oracle Forms, Oracle Reports, and SQL*Net could not find the alias specified for a connection in the TNSNAMES.ORA file or other naming adapters. Now, let’s reproduce the error and find

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