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Q 1 - Consider the following schema STUDENTS(student_code, first_name, last_name, email, phone_no, date_of_birth, honours_subject, percentage_of_marks) Which of the following query would display names of all the students whose emails are not provided? A - select first_name, last name from students where email = 0; B - select first_name, last name from students where email = '; C - select first_name, last name from students where email is null; D - select first_name, last name from students where email - 'null';

Q 1 - Consider the following schema STUDENTS(student_code, first_name, last_name, email, phone_no, date_of_birth, honours_subject, percentage_of_marks) Which of the following query would display names of all the students whose emails are not provided? A - select first_name, last name from students where email = 0; B - select first_name, last name from students where email = '; C - select first_name, last name from students where email is null; D - select first_name, last name from students where email - 'null';

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Principle of Database management. Please help me this question (rred sentence- using division to select?)

 
Q1- Consider the following schema STUDENTS(student_code, first_name, last_name, email, phone_no, date_of_birth, honours_subject, percentage_of_marks) Which of the following query would display names of all the students whose emails are not provided? A - select first_name, last name from students where email = 0; B- select first_name, last name from students where email = ' '; C- select firstname, last name from students where email is null; D- select first_name, last name from students where email - 'null'; n: use division to select names of all the students whose emails are not provided
Transcribed Image Text:Q1- Consider the following schema STUDENTS(student_code, first_name, last_name, email, phone_no, date_of_birth, honours_subject, percentage_of_marks) Which of the following query would display names of all the students whose emails are not provided? A - select first_name, last name from students where email = 0; B- select first_name, last name from students where email = ' '; C- select firstname, last name from students where email is null; D- select first_name, last name from students where email - 'null'; n: use division to select names of all the students whose emails are not provided
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