Display exceuted query from datasource in Axapta form

To Display query which are currently exceuting from form datasource in Axapta. You just need to user toString method with Querybuilddatasource clase object,
   Query q;  
   QueryBuildDataSource qbds;  
   ;  
   q = this.query();  
   qbds = q.dataSourceName("CustTable");  
   strfmt("%1", qbds.toString());