how to generate 4 digit unique alpha random num in sql server
can any one suggest a logic for to generate 4 digit alpha random number in sql server 2008 

ex:

   **02G4: 4digit unique alphanumeric random no. to be generated** 
how to generate 4 digit unique alpha random num in sql server
===

can any one suggest a logic for to generate 4 digit alpha random number in sql server 2008 

ex:

   **02G4: 4digit unique alphanumeric random no. to be generated** 