CREATE TABLE manager (Manager_ID NUMBER, Name CLOB, Country CLOB, Working_year_starts CLOB, Age NUMBER, Level NUMBER)
CREATE TABLE train (Train_ID NUMBER, Train_Num CLOB, Name CLOB, From CLOB, Arrival CLOB, Railway_ID NUMBER)
CREATE TABLE railway_manage (Railway_ID NUMBER, Manager_ID NUMBER, From_Year CLOB)
CREATE TABLE railway (Railway_ID NUMBER, Railway CLOB, Builder CLOB, Built CLOB, Wheels CLOB, Location CLOB, ObjectNumber CLOB)

Visualize a bar chart, the x-axis is the arrival time, and the y-axis is the total number of trains in each arrival time, and show Y in ascending order.
SELECT Arrival, COUNT(Arrival) FROM train GROUP BY Arrival ORDER BY COUNT(Arrival)
SELECT "Arrival", COUNT("Arrival") FROM "train" GROUP BY "Arrival" ORDER BY COUNT("Arrival")