Error when Using a Table-Column List "Column with Name 'X' Already Exists in Resultset." or "An item with the same key has already been added." (Doc ID 1077853.1)

Last updated on JANUARY 05, 2017

Applies to:

Oracle Utilities Transaction Management - Version 04.50 and later
Oracle Utilities Billing Component - Version 04.50 and later
Oracle Utilities Load Profiling and Settlement - Version 04.50 and later
Oracle Utilities Meter Data Management - Version 04.50 and later
Oracle Utilities Portfolio Management - Version 04.50 and later
Information in this document applies to any platform.

Symptoms

Error can occur in the Rules Language on a FOR EACH IN LIST statement or a LISTVALUE statement, or in the Table-Column list edit window if values are provided to the list instead of identifiers.

The full error message is: 

"A column with name 'X' already exists in resultset. Missing prefix in one of metadata references for the 'TABLE1' table may lead to this error."

The error message can also be shown as:

"An item with the same key has already been added."

Cause

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