To change relationships on columns in a table in the current location: 
               	 
            
 
            	 
             
               		
               - From the main menu, click 
                  		  Tools > SQL Option for DB2 > Client > SQL Wizard. 
                  		
               
- If the Catalog Browser window is not open, click 
                  		   to open it. to open it.
- On the Catalog Browser window, ensure the 
                  		  Table tab is selected. 
                  		
               
- Click the table you want. 
                  		
               
- Click 
                  		  Alter. 
                  		
               
- Select the name of the foreign key you want to alter from the list. 
                  		
               
- In the 
                  		  Relationships group, click 
                  		  Alter. 
                  		
               
- Make the changes you require. 
                  		
               
- When you have finished, click 
                  		  OK to close the Alter Relationship dialog box. 
                  		  
                  You can look at the SQL statements that will be used to make your changes by clicking 
                     			 SQL. 
                     		  
                   
- Click 
                  		  OK to close the Alter Table window.