CREATE TABLE church (Church_ID INT, Name TEXT, Organized_by TEXT, Open_Date INT, Continuation_of TEXT)
CREATE TABLE people (People_ID INT, Name TEXT, Country TEXT, Is_Male TEXT, Age INT)
CREATE TABLE wedding (Church_ID INT, Male_ID INT, Female_ID INT, Year INT)

How many churches open each year? Convert the year into the weekday interval and visualize with a bar chart, and display in ascending by the Y-axis.
SELECT Open_Date, COUNT(Open_Date) FROM church ORDER BY COUNT(Open_Date)
SELECT "Open_Date", COUNT("Open_Date") FROM "church" ORDER BY COUNT("Open_Date") NULLS FIRST