MoL Chapter 8
List all details from the weather table for stornoway for 1887 so that you can see the NULL value
SELECT *
FROM weather
WHERE station='stornoway' AND yr=1883
SELECT *
FROM weather
WHERE station='stornoway' AND yr=1883
SELECT *
FROM weather
WHERE station='stornoway' AND yr=1883
SELECT *
FROM weather
WHERE station='stornoway' AND yr=1883