Using TABLOCK with merge SQL Server

Question

I have a merge query similar to the one below:

MERGE [Unshipped] u
USING [Order] or ON or.ID = u.ID

WHEN MATCHED AND u.Date <> or.Date
   THEN
      UPDATE 
      SET u.Date = or.Date

WHEN NOT MATCHED
    THEN 
       INSERT (ID, FK, Date)
       VALUES (or.ID, or.FK, or.Date)

If i am to add TABLOCK where is the best place for it? I would have assumed i would put it like below - wrap the whole merge statement:

     MERGE [Unshipped] u WITH (TABLOCK)
     USING [Order] order or ON or.ID = u.ID

or is it more suitable for it to go with the insert statement?

Answer 1

You only need:

 MERGE [Unshipped] WITH (TABLOCK) AS u 
 USING [Order] or ON or.ID = u.ID

Rest of the MERGE statement is unchanged.