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Status Not under consideration
Workspace IBM i
Categories Languages - RPG
Created by Guest
Created on Sep 24, 2018

RELATED IDEAS

Enable Retrieval of SQL constraint violation error information in RPG program

Current RPG support requires programmers to use IBM i APIs plus considerable coding to determine what constraint has caused an error. For example, when using an SQL insert on table, where a check or foreign key constraint is used, a violation of the constraint doesn't readily provide sufficient information to notify the user in the program. A function or operation to immediately return the name of the constraint, would be ideal.


Use Case:

To illustrate this issue, one might read the article(s) previously written by Paul Tuohy, to show approaches to handle constraint violations. {https://www.itjungle.com/2018/09/05/guru-handling-constraint-violations-in-rpg/}. The amount of code required would be reduced if DB2 and RPG had a method to directly retrieve the constraint being violated from an SQL Communication area, a built-in function or an SQL Diagnostics area.


Idea priority Medium
  • Guest
    Reply
    |     Oct 26, 2018

    IBM does not intend to provide a solution to this request at this time, so it is being closed.

  • Guest
    Reply
    |     Sep 26, 2018

    Does the GET DIAGNOSTICS for CONSTRAINT_NAME not contain the information you're after?

  • Guest
    Reply
    |     Sep 25, 2018

    If you read the article you'll see that SQLERRMC of the SQLCA contains the constraint name, so I don't understand your request as it is already available. In addition, the article contains the necessary procedures to handle this for native IO.

    BTW, coding API's is not something 'dirty', and once written in a procedure it can be reused by everyone without any effort.

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