get list of records from source table and update column

Hi

In my RequestLog table, i will get multiple request ids, with different executionid.

i want to update SAPSOURCE Table 'Requestid" column where requestid in ("Reqestlog-requestid") and ExecutionID <> ("Reqestlog-executionid")

DECLARE @varRequestId  NVARCHAR(255);
DECLARE @varExecutionId  NVARCHAR(255);


select    @varRequestId = RequestID , @varExecutionId =  _AuditCreatedExecutionId from STA.RequestLog where Source  =  'SAPSOURCE'  and cast(_AuditCreatedDate as date) = cast(getdate() as date)

UPDATE STA.SAPSOURCE set RequestID  = 0  where RequestID in (@varRequestId) and   _AuditCreatedExecutionID <>  @varExecutionId

the reason is there are records duplicated in the SAPSOURCE Table, where the _AuditCreatedExecutionId is not found in RequestLog Table.

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ShanmugaRaj