Hello, verybody, I am afraid to send my question again. i created a table in mysql database system to store exam questions which has the following column fields: questionnumber(integer),questionbody(String), answers (String) and etc. My problem is if i delete one row(question record) how can iupdate the questionnumber in the easiest way which means mysql can do for me. Is it possible? or i have to write a method to update questionnumber. if In second case i got another worry. for example, i wrote two querys,one is to delete this question record another query is to update the questionnumber,that is , all records whose questionnumbers are greater than the questionnumber of the deleted question should deducted by 1. if at the time After the first query is executed successfully and the second query is being executed, the computer is crashed. the second query will be rolled back. so the question is deleted but the questionnumber is not updated. this will result in a mess. If anybody can give me some hint i will appreicate very much Have a good weekend bin
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