When a Qlik Replicate developer encounters errors about a duplicate key when applying INSERT, the first step to identify and resolve the issue is to:
A: Check the error message in the Apply Exceptions control table: This control table contains detailed information about any exceptions that occur during the apply process, including duplicate key errors.By examining the error messages, the developer can understand the cause of the issue and take appropriate action to resolve it1.
The process involves:
Accessing the Qlik Replicate Console.
Navigating to the task that is experiencing the issue.
Opening the Apply Exceptions control table to review the error messages related to the duplicate key issue.
Analyzing the error details to determine the cause, such as whether it's due to a source data problem or a target schema constraint.
The other options are not the correct initial steps for identifying the issue:
B: Stop and reload the task: This action might temporarily bypass the error but does not address the root cause of the duplicate key issue.
C: Stop task and enable the Apply Exceptions control table: The Apply Exceptions control table should already be enabled and checked for errors as the first step.
D: Stop and resume the task: Resuming the task without identifying the cause of the error will likely result in the error reoccurring.
For more information on how to troubleshoot and handle duplicate key errors in Qlik Replicate, you can refer to the official Qlik community articles and support resources that provide guidance on error handling and the use of the Apply Exceptions control table2.