When trying to update wrong end dates in assignment grade step record, 4712 row getting deleted

Summary:

We have data corruption in PER_ASSIGN_GRADE_STEPS_F record due to initial wrong HSDL loads.

Data corruption like multiple 4712 rows, rows with overlapping dates e.t.c

So as part of clean up, when we are trying to run HDL and correct end dates , it is removing top 4712 row as well.

Please suggest.

Content (required):

HDL

Version (include the version you are using, if applicable):

23B

Code Snippet (add any code snippets that support your topic, if applicable):

SET ENABLE_AUDIT_DATA Y

SET ENABLE_INCREMENTAL_LOAD_EVENTS Y

METADATA|AssignmentGradeSteps| AssignmentNumber|AssignmentId|AssignGradeStepId|GradeStepId|EffectiveEndDate|EffectiveStartDate|ReplaceLastEffectiveEndDate