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Insert Surrogate keys

Insert Surrogate keys

(OP)
Hi all,

I have table CLNT table in TERADATA as per below

CODE

CREATE TABLE [dbo].[CLNT](
	[CLNT_I]  NOT NULL,
	[FRST_NAME] [varchar](100) NULL,
	[LAST_NAME] [varchar](100) NULL,
	[UPDT_S] [date] NULL, 

) WITH PRIMARY KEY (CLNT_I) 

CLNT_I is meant to be surrogate key and as you know the identity column in Teradata is not always increment by 1.
And I would like to insert the CLNT table from temp table as per below code in SQL 

CODE

MERGE INTO dbo.CLNT  AS target
USING dbo.temp AS source
    ON target.FRST_NAME = source.NAME    
	and target.UPDT_S = source.DATE_D    
WHEN MATCHED THEN 
    UPDATE SET target.UPDT_S = source.DATE_D
WHEN NOT MATCHED BY TARGET THEN
    INSERT (FRST_NAME, UPDT_S)
    VALUES (source.name, source.Date_D); 

How would i do this simple command in teradata?
Thank you guys,

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