The host variable 
		host-var is not unique and requires that you qualify it. 
	 
 
  
 
	  
		Resolution: 
		
 
		Fully qualify a host variable in an SQL query. For example if the ORD-NO host variable exists in both the ORDERS and ITEMS copybooks, and you want the host variable from the ORDERS copybook to be used in the query, specify: 
		  
:ORDERS.ORD-NO