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Welcome to the Managing Data using SQL MCQs Page

Dive deep into the fascinating world of Managing Data using SQL with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Managing Data using SQL, a crucial aspect of MySQL Database. In this section, you will encounter a diverse range of MCQs that cover various aspects of Managing Data using SQL, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within MySQL Database.

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Check out the MCQs below to embark on an enriching journey through Managing Data using SQL. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of MySQL Database.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Managing Data using SQL. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Managing Data using SQL MCQs | Page 18 of 20

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Q171.
Is it necessary to insert the value in each column of the table?
Discuss
Answer: (b).No
Q172.
In the following SQL query, what does β€œperson” stands for?
   INSERT INTO person
    (person_id, fname, lname) 
    VALUES (1,’S’,’P’);
Discuss
Answer: (c).Table name
Q173.
In the following SQL query, what does β€œperson_id” stands for?
   CREATE TABLE person
   (person_ id SMALLINT UNSIGNED,
   fname VARCHAR(20),
   lname VARCHAR(20),
   CONSTRAINT pk_person PRIMARY KEY (person_id));
Discuss
Answer: (b).Super key
Q174.
Which statement can be used for modifying the definition for an existing table?
Discuss
Answer: (a).ALTER
Q175.
Which feature is used for the automatic increment of the column?
Discuss
Answer: (a).AUTO_INCREMENT
Discuss
Answer: (a).ALTER TABLE person MODIFY person_id SMALLINT UNSIGNED AUTO_INCREMENT;
Q177.
Will the following SQL command produce any error?
  INSERT INTO person
  (person_id, fname,lname)
  VALUES (1,’S’,’U’),
  VALUES (1,’T’,’U’);
 /* where person_id is a primary key */
Discuss
Answer: (a).Error
Q178.
Will the following SQL command produce any error ?
INSERT INTO person
(person_id, fname,lname)
VALUES (1,’S’,’U’),
VALUES (2,’T’,’U’);
/* where person_id is a primary key */
Discuss
Answer: (b).No Error
Q179.
What is the default value of column?
Discuss
Answer: (a).NULL
Q180.
Which statement is used to select columns and rows from the table?
Discuss
Answer: (a).SELECT

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