dyn_cursor_name ::= cursor_name | extended_cursor_name
This rule is called by -> dyn_close_stmt -> dyn_delete_stmt_pos -> dyn_fetch_stmt -> dyn_open_stmt -> dyn_update_stmt_pos
-> dyn_close_stmt -> dyn_delete_stmt_pos -> dyn_fetch_stmt -> dyn_open_stmt -> dyn_update_stmt_pos