Hi pals,

I have a module in my PHP application that creates and id (string + the 
auto_increment field). I read the last auto_increment value from the table, 
then in my code I use it as the base to create a second id (the auto_increment 
field + string).

This happens for as many hardware the user has selected to send for repairment 
but, What if another user also is sending hardware for repairment? His process 
will also read the same auto_increment value from the table, will use it to 
create the second id field in my code, so, probably I will have ids like:

Last auto_increment value = 1

User A

User B

I have a constraint: The ID part (from string + the auto_increment field) 
should be continuos! I can not have two IDs with the same auto_increment value 
in it!!

Is there a way to use transactios in MySQL??
Or maybe using a global variable accesed by all the processes running in the 
Or actually creating the auto_increment fields by inserting as many rows 
needed, but what if the user cancels the operatuion?
Or another different approach to solve this problem?

Miguel Guirao

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