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SQL Basics Questions And Answers

Here you can find SQL Basics Questions and Answers.

Why SQL Basics Questions and Answers Required?

In this SQL Basics Questions and Answers section you can learn and practice SQL Basics Questions and Answers to improve your skills in order to face technical inerview conducted by organisations. By Practicing these interview questions, you can easily crack any Exams interview.

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You no need to worry, we have given lots of SQL Basics Questions and Answers and also we have provided lots of FAQ's to quickly answer the questions in the Competitive Exams interview.

SQL Basics Questions & Answers

1. Which one of the following is used to define the structure of the relation ,deleting relations and relating schemas

SQL Basics Questions & Answers

2. Which one of the following provides the ability to query information from the database and to insert tuples into, delete tuples from, and modify tuples in the database ?

SQL Basics Questions & Answers

3. Create table employee (name varchar ,id integer) What type of statement is this ?

SQL Basics Questions & Answers

4. Select * from employee What type of statement is this?

SQL Basics Questions & Answers

5. The basic data type char(n) is a _____ length character string and varchar(n) is _____ length character.

SQL Basics Questions & Answers

6. An attribute A of datatype varchar(20) has the value “Avi” . The attribute B of datatype char(20) has value ”Reed” .Here attribute A has ____ spaces and attribute B has ____ spaces .

SQL Basics Questions & Answers

7. To remove a relation from an SQL database, we use the ______ command.

SQL Basics Questions & Answers

8. Delete from r; r – relation This command performs which of the following action ?

SQL Basics Questions & Answers

9. Insert into instructor values (10211, ’Smith’, ’Biology’, 66000); What type of statement is this ?

SQL Basics Questions & Answers

10. Updates that violate __________ are disallowed .

Home EngineeringComputer Science & EngineeringDBMS Questions and AnswersSQL Basics

SQL Basics Questions and Answers

This is the DBMS questions and answers section on "SQL Basics" with explanation for various interview, competitive examination and entrance test. Solved examples with detailed answer description, explanation are given and it would be easy to understand. The provided SQL Basics Questions start from the basics and later to the advanced topics. The contenders can check the SQL Basics Online Test to find the questions along with the answers. For the sake of competitors, we have arranged the multiple choice questions related to the SQL Basics at the last of this post. So, the aspirants can participate in the SQL Basics Quiz and learn the concepts of the Sequential Query Langauge. Competitors who are searching for the SQL Basics Interview Questions can also refer to this post. At the bottom of this article, the candidates can find the SQL Basics Mock Test to practice and to learn the questions along with the answers.



SQL Basics Questions - SQL Basics Quiz Details

Online Test Name SQL Basics
Exam Type Multiple Choice Questions
Category Computer Science Engineering Quiz
Number of Questions 18


All the aspirants need to know the basics of the SQL. With the help of this post, the competitors can know the key and fundamentals of the SQL. Structured Query Language is the abbreviation for the SQL. SQL is a standard language for accessing and manipulating databases. Aspirants need to gather all the points related to the SQL to answer the questions in the examinations. Without any time waste, the candidates can go to the below portions and take part in the SQL Basics Online Test. In addition to this, the applicants can practice Computer Science Engineering Quiz from our web portal.



SQL Basics Multiple Choice Questions

Applicants can find the information related to the SQL Basics Quiz from the above table. So, the students can take part in the SQL Basics Online Test and check the SQL Basics Questions and Answers. Candidates how will prepare the SQL Basics Multiple Choice Questions can easily get the solutions at the time of the examinations and interviews. Therefore, the contenders who are ready to participate in the interviews regarding SQL can practice questions in the SQL Basics Mock Test. Individuals can know all the details related to the Sequential Query Langauge by participating the SQL Basics Online Test.

SQL Basics MCQ Quiz Answers with Solutions

Postulates can use the View Answer button to check the right option or choice among the given options. To do any SQL Queries related to the question, the aspirants can utilize the workspace which is provided. We have arranged the answers along with the explanations for all the SQL Basics Questions. So, the contenders can use this opportunity to know the different types of questions regarding SQL Basics. Hope, all the aspirants can check our homepage @ Allindiaexams.in to participate in more online tests.


1. Which one of the following is used to define the structure of the relation ,deleting relations and relating schemas ?
  • A. DML(Data Manipulation Langauge)
  • B. DDL(Data Definition Langauge)
  • C. Query
  • D. Relational Schema
  • View Answer
  • Workspace
  • Report
  • Discuss

Answer & Explanation

Answer: Option B

Explanation:

DDL(Data Definition Langauge)

Data Definition language is the language which performs all the operation in defining structure of relation.

Workspace

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2. Which one of the following provides the ability to query information from the database and to insert tuples into, delete tuples from, and modify tuples in the database ?
  • A. DML(Data Manipulation Langauge)
  • B. DDL(Data Definition Langauge)
  • C. Query
  • D. Relational Schema
  • View Answer
  • Workspace
  • Report
  • Discuss

Answer & Explanation

Answer: Option A

Explanation:

DML(Data Manipulation Langauge)

DML performs change in the values of the relation .

Workspace

Report Error


3. Create table employee (name varchar ,id integer) What type of statement is this ?
  • A. DML
  • B. DDL
  • C. View
  • D. Integrity constraint
  • View Answer
  • Workspace
  • Report
  • Discuss

Answer & Explanation

Answer: Option B

Explanation:

DDL

Data Definition language is the language which performs all the operation in defining structure of relation.

Workspace

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4. Select * from employee What type of statement is this?
  • A. DML
  • B. DDL
  • C. View
  • D. Integrity constraint
  • View Answer
  • Workspace
  • Report
  • Discuss

Answer & Explanation

Answer: Option A

Explanation:

DML

Select operation just shows the required fields of the relation. So it forms a DML

Workspace

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5. The basic data type char(n) is a _____ length character string and varchar(n) is _____ length character.
  • A. Fixed, equal
  • B. Equal, variable
  • C. Fixed, variable
  • D. Variable, equal
  • View Answer
  • Workspace
  • Report
  • Discuss

Answer & Explanation

Answer: Option C

Explanation:

Fixed, variable

Varchar changes its length accordingly whereas char has a specific length which has to be filled by either letters or spaces .

Workspace

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Related Topics:

  • Triggers
  • Physical Storage Media
  • Indexes
  • Aggregate Functions
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  • Deadlocks
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