Exactly: you need some strategy to deal with the problem of overwrites rather than designing a whole system so they don't happen. You can create a unique ID on fetch, you can have a timestamp field automatically update on an insert/update and compare them before updating the object. Plus there's always the strategy of 'last-write wins', which is a legitimate trade-off in many situations.

Chris
M-x auto-bs-mode

In reply to Solving the real problem by lachoy
in thread OO Perl & RDBMS Strategy Question by DamnDirtyApe

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