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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This was first published in October 2005

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