IBM Data Engineer SQL Interview Question (Hacker Rank Online Test)
In this video we are going to discuss a SQL interview question asked in IBM for a data engineer position. It was part of a hacker rank test. We are also going to tweak the question a bit and try to solve it.
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script:
CREATE TABLE FAMILIES (
ID VARCHAR(50),
NAME VARCHAR(50),
FAMILY_SIZE INT
);
-- Insert data into FAMILIES table
INSERT INTO FAMILIES (ID, NAME, FAMILY_SIZE)
VALUES
('c00dac11bde74750b4d207b9c182a85f', 'Alex Thomas', 9),
('eb6f2d3426694667ae3e79d6274114a4', 'Chris Gray', 2),
('3f7b5b8e835d4e1c8b3e12e964a741f3', 'Emily Johnson', 4),
('9a345b079d9f4d3cafb2d4c11d20f8ce', 'Michael Brown', 6),
('e0a5f57516024de2a231d09de2cbe9d1', 'Jessica Wilson', 3);
-- Create COUNTRIES table
CREATE TABLE COUNTRIES (
ID VARCHAR(50),
NAME VARCHAR(50),
MIN_SIZE INT,
MAX_SIZE INT
);
INSERT INTO COUNTRIES (ID, NAME, MIN_SIZE,MAX_SIZE)
VALUES
('023fd23615bd4ff4b2ae0a13ed7efec9', 'Bolivia', 2 , 4),
('be247f73de0f4b2d810367cb26941fb9', 'Cook Islands', 4,8),
('3e85ab80a6f84ef3b9068b21dbcc54b3', 'Brazil', 4,7),
('e571e164152c4f7c8413e2734f67b146', 'Australia', 5,9),
('f35a7bb7d44342f7a8a42a53115294a8', 'Canada', 3,5),
('a1b5a4b5fc5f46f891d9040566a78f27', 'Japan', 10,12);
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#sql #dataengineer
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