Masking Job Fails with 'ORA-00918: Column Ambiguously Defined' using Shuffle Format
(Doc ID 2275315.1)
Last updated on MARCH 01, 2019
Applies to:Oracle Data Masking and Subsetting - Version 220.127.116.11.0 and later
Information in this document applies to any platform.
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Masking a column HR.PERSONAL.ADDRESS with Shuffle format, Grouping Columns set as ADDRESS.
Masking job execution failed with ORA-00918: column ambiguously defined.
1) Create a masking definition, selected HR.PERSONAL.ADDRESS column.
2) Define format for the columns, choose "Shuffle" Format type and
in the Grouping columns select ADDRESS.
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