error management

[stevol]

Hi,
I created a function with query on a DB; sometimes I obtain errors, such as "ORA-00020: maximum number of processes (%s) exceeded"
obviously indipendent from the script.
Which instruction can I use to manage this error (and eventual similar) repeating automatically the function?
[is it possible to set a fixed number of attempts to repeat the function when there is an error?]
thanks a lot

PS: 'On error resume next' is insufficient in my need because bypasses error without retry

[Ankur]

you can raise an error using an err object... whenever you encounter that particular no, increase a counter by 1 till it reaches the value defined by you.