Answer the given question with a proper explanation and step-by-step solution. sid name value working hours timestamp 14 temperatureΑΒΒ 47 20 11/10/22015 12:00:00 16 humidityBosch 51 200 11/11/22015 12:00:00 19 temperatureΑΒΒ 41 NULL 11/11/22015 12:00:00 20 temperatureΑΒΒ NULL 30 11/12/22015 12:00:00 Write sql statement that calculates the average temperature for the temperature sensor and it will be showed Write sql statement that will show all the fields of of the table in order not to have duplex values

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Answer the given question with a proper explanation and step-by-step solution.

sid name value working hours timestamp
14 temperatureΑΒΒ 47 20 11/10/22015 12:00:00
16 humidityBosch 51 200 11/11/22015 12:00:00
19 temperatureΑΒΒ 41 NULL 11/11/22015 12:00:00
20 temperatureΑΒΒ NULL 30 11/12/22015 12:00:00
  1. Write sql statement that calculates the average temperature for the temperature sensor and it will be showed
  2. Write sql statement that will show all the fields of of the table in order not to have duplex values

THE NULLS VALUES MUST BE EXCLUDED .

PLEASE WRITE THE ANSWER IN PAPER

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