Vaccine Name Pharma_Company No_of_shots | Effectiveness | Marketting_date Inventor Person NID Profession Address Name Age Vaccination v.Name p.NID First_dose_taken Second_dose_taken Consider the relational schema above. Write a single sql query for each of the tasks below: A. Find the information (name inventor and company) of the vaccines with lowest effectiveness

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
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find sql query for the given relational schema 

Vaccine
Name
Inventor
Pharma_Company No_of shots Effectiveness
Marketting date
Person
NID
Name
Age
Profession
Address
Vaccination
v.Name
p.NID
First_dose_taken Second_dose_taken
Consider the relational schema above. Write a single sql query for each of the tasks below:
А.
Find the information (name, inventor, and company) of the vaccines with lowest effectiveness.
B.
Find how many vaccines came into the market in each month of 2021.
C.
Count the number of people who got at least 1 dose of the vaccine that has the latest marketing date.
Transcribed Image Text:Vaccine Name Inventor Pharma_Company No_of shots Effectiveness Marketting date Person NID Name Age Profession Address Vaccination v.Name p.NID First_dose_taken Second_dose_taken Consider the relational schema above. Write a single sql query for each of the tasks below: А. Find the information (name, inventor, and company) of the vaccines with lowest effectiveness. B. Find how many vaccines came into the market in each month of 2021. C. Count the number of people who got at least 1 dose of the vaccine that has the latest marketing date.
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