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This is a terribly worded question. Here is how it should have been phrased -
Write a query to find the difference between the total number of cities and the unique number of cities in the table STATION.
I don't understand why he says "Let's say" and gives all NUM etc.
Weather Observation Station 4
You are viewing a single comment's thread. Return to all comments →
This is a terribly worded question. Here is how it should have been phrased -
Write a query to find the difference between the total number of cities and the unique number of cities in the table STATION.
I don't understand why he says "Let's say" and gives all NUM etc.