The SQL CALL statement for stored procedure ProcName contains a null value in its parameter list, and this stored procedure does not accept null values.
             
               		  
               Restriction: This topic applies to Windows environments only. 
                  		  
               
 
               		
             
            
            Verify that the LINKAGE column in the SYSIBM.SYSPROCEDURES table correctly specifies whether ProcName can accept null values. 
            
            
            
               
               -  If ProcName can accept null values, set the LINKAGE value to N.
               
-  If ProcName cannot accept null values, make sure the LINKAGE value is blank. Then correct your CALL statement so that it passes a non-null
                  value for parameter number.