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Message Posted: Mon, 06 Jul 2009 @ 15:20:52 GMT

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Subj:   Re: How to get "locking row for access" on child and parent query?
From:   Michael Larkins


As long as the query executes, there is nothing wrong with the way you wrote it. Are you indicating that you are getting a table level lock?

If so, Teradata's optimizer has decided that a row level lock would be less efficient than a table level lock. Therefore, it takes the liberty to escalate the lock from row hash to table. Since it is an ACCESS lock, it really has little if any impact on other users or applications.


Michael Larkins
Certified Teradata Master
Certified Teradata SQL Instructor

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