sql question help !!

who can tell me , how can i to avoid this sql . in my database this sql is execution 12990 times.

select ac.constraint_name key_name, acc.column_name key_col, 1
  from all_cons_columns acc, all_constraints ac
 where acc.owner = ac.owner
   and acc.constraint_name = ac.constraint_name
   and acc.table_name = ac.table_name
   and ac.constraint_type = 'P'
   and ac.owner = :OwnerName
   and ac.table_name = :TableName
 order by acc.constraint_name