Re: database table locking across supported database

Hi,

On Sun, Jun 29, 2014 at 8:45 PM, John Andersen <j.andersen.lv@gmail.com> wrote:
>
> Put a unique index on your receipt_number column, then when you
> grab the highest receipt_number, increases it and saves it, you will either
> succeed or get an error.

Thats one way of doing it.

But I have faced this issues at few other places also. For eg : I want
to read a huge number of rows from table 'x' and I want to do some
calculations on it and then save the result in the table 'y'. Now I
dont want anyone else to add or remove removes from the table 'x'
until I have finished writing the result to table 'y'.

Having support for locking will really help and make it easier for me
do deal with the concurrency issues.

Regards.

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