PKG1.PRC_2: function call tree

|    
+--->1. PRC_REF_CUR_TAB2 (46)
|    |    
|    +--->2. PKG2.FCN_BIG_MAX_VAL (29)
|    +---> OPEN iov_ref FOR (30)
|    
+---> FETCH lv_cur INTO lv_rec; (48)
+--->1. PKG2.FCN_MAX_VAL (50)
+---> UPDATE tab2 (52)
+---> WHEN OTHERS THEN (56)
+---> RAISE user_defined_exc; (62)
+---> CLOSE lv_cur; (66)