SQL - 예제로 배우는 SQL 1

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👉🏻 SELECT basics

1. Introducing the world table of countries

Q. Modify it to show the population of Germany

A.

SELECT population FROM world 
WhERE name = 'Germany' ;

2.Scandinavia

Q. Show the name and the population for 'Sweden', 'Norway' and 'Denmark'.

A.

SELECT name, population FROM world 
WhERE name IN ('Sweden', 'Norway', 'Denmark') ;

3.Just the right size

Q. Modify it to show the country and the area for countries with an area between 200,000 and 250,000.

A.

SELECT name, area FROM world 
WhERE area between 200000 and 250000 ;