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Identifier field in Microsoft's SQL Server

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QUESTION POSED ON: 25 October 2005
I have a table similar to this: 
 cust_id     trans_dt
  a0001      12/05/2005
  a0002      12/05/2005
  a0001      12/05/2005
The table does not have a ROWID or identifier field. I would like to delete the duplicate records and have the results formatted like this: 
 a0001     12/05/2005
 a0002     12/05/2005
-----------------------
In Oracle there is ROWID to solve this problem. Is there a way to resolve this in SQL Server?

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There are a couple ways to accomplish this task. Just because I like fast transactions, I would probably do something like this:

  1. SELECT DISTINCT cust_id, trans_dt INTO temp_tbl FROM customertrans
  2. TRUNCATE TABLE customertrans
  3. INSERT INTO customertrans SELECT * FROM temp_tbl

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