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Editorial Team
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Asked: 2026-05-13T08:51:36+00:00

I’m hesitant to run this query which deletes data (for obvious reasons). I would

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I’m hesitant to run this query which deletes data (for obvious reasons).

I would like to delete the the matching rows from two tables, where the ID = the ID of a third table (which i want to remain unaffected)

This is the exact query I would like to run:

DELETE FROM ItemTracker_dbo.Transaction t, 
            ItemTracker_dbo.Purchase p
USING ItemTracker_dbo.Transaction
INNER JOIN ItemTracer_dbo.Purchase ON p.Transaction_ID = t.Transaction_ID
INNER JOIN ItemTracker_dbo.Item i ON i.Item_ID = p.Item_ID
WHERE i.Client_ID = 1

To test this, i tried running a select replacing DELETE FROM with SELECT * FROM, and I get a syntax error ‘near USING’. When I remove USING ... it selects EVERY row in the table (ignoring the client_id=1 clause).

I (essentially) copied the syntax from the mysql manual (obviously replacing the values).

Is this query valid?

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1 Answer

  1. Editorial Team

    I’m sorry I didn’t comment instead of post, but I just don’t have enough reputation. Why don’t you run it as a transaction and see the results? Or am I missing something?
    http://dev.mysql.com/doc/refman/5.0/en/commit.html

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