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Message Posted: Fri, 12 Dec 2003 @ 19:08:08 GMT

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Subj:   Re: Concurrent Loads/Deletes for Staging Table
From:   Duane Angle

We're trying to avoid having to create a separate table for each country because of the overhead/maintenance involved. We are separated where the MLOAD process is concerned for the initial staging of the data and would prefer not to maintain the split further than that.

I'm not sure I'm understanding your second paragraph, so bear with me. The MASTER table has the Primary Index of Customer and Material, but it does contain the Country_Cd and Month fields that we delete by as well. I'd just like to find a way to facilitate a true row-level locking mechanism so that I can have 3 or 4 countries deleting their own rows from that MASTER table since there is never an overlap from one country to the next.

Are you saying that a delete via a join would provide something along the lines of a row level lock (thus your suggestion for the temporary table)? Or are you saying that adding the Country_Cd and Month to the PI on the Master table might cause Teradata to opt against the table lock?


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