But 535 will need to re acquire the row before it can update.
Alan
On 07/01/2013 11:34 AM, "W O" <sistemas2000profesio...@gmail.com> wrote:

> Hello everybody
>
> - Transaction 510 inserts a new row
> - Transaction 510 commit
> - Transaction 526 start
> - Transaction 526 updates the row inserted by transaction 510
> - Transaction 535 start
> - Transaction 535 wants to update the row inserted by transaction 510 but
> unsuccesfully because transaction 526 has locked it
> - Transaction 526 commit
>
> Can now transaction 535 update the row inserted by transaction 510? In this
> case, updates makes for transaction 526 will be lost, right?
>
> Or transaction 535 should first to read the new row commited (the 526)
> before making the update?
>
> Greetings.
>
> Walter.
>
>
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>
>
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