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import text file

Author

Topic

helixpoint
Constraint Violating Yak Guru

291 Posts

Posted - 2005-08-01 : 11:05:44

I am new to DTS. In fact this is my first. Is there a demo how to parse threw a tab delimited file and either update the records or insert records

Dave

Kristen
Test

22859 Posts

Posted - 2005-08-01 : 12:07:11

I don't reckon DTS will do an "Upsert" out of the box.

You'll probably have to use DTS to suck the data into a staging table, and then from there do:


UPDATE U
SET   U.Col1 = S.Col1,
...
FROM  MyStagingTable S
      JOIN MyTable U
          ON U.MyPK = S.MyPK

INSERT INTO MyTable
(
    Col1, Col2, ...
)
SELECT Col1, Col2, ...
FROM MyStagingTable S
      LEFT OUTER JOIN MyTable U
          ON U.MyPK = S.MyPK
WHERE U.MyPK IS NULL

If "MyTable" has an IDENTITY column, and you want to preserve the Identity column from the imported data, there is some additional fancy-SQL required.

Kristen

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