Table in DB for generating primary keys?
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Published on 2010-03-12T18:41:43Z
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2010/03/12
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Do you ever use a separate table for "generating" artificial primary keys for DB (and why)? What I mean is to have a table with two columns, table name and current ID - with which you could get new "ID" for some table by simply locking the row with that table name, getting the current value of the key, increment it by one, and unlock the row. Why would you prefer this over standard integer identity column?
P.S. The "idea" is from Fowlers Patterns of Enterprise Application Architecture, btw...
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