I have developed a web appication for Hospital which manages Patient Information.
When the web application is simultaneously opened on more than one machine.
While filling data on one machine it redirect to next page which autogenerates SID.
but when user at the same time try to fill data from another machine it generates same ID and while filling data.
it says ID already exist and give server error.
How can more than one user work simultaneously.
Kindly Suggest the same.