Database Normalization and Efficient SQL Design Quiz

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Which of the following is true about SQL?

SQL is a programming language.

SQL is a standard language for accessing and manipulating databases. (correct)

SQL is a type of database.

SQL is only used in web development.

What does RDBMS stand for?

Relational Data Manipulation System

Remote Data Manipulation System

Relational Database Management System (correct)

Remote Database Management System

What is a record in a database table?

A collection of related data entries

A field in a table

A column in a table

A row in a table (correct)

Which type of SQL command is used to define data tables?

Data Definition Language (DDL) Signup and view all the answers

Which SQL command is used to narrow down the amount of data selected from a table?

SELECT Signup and view all the answers

What does the CREATE command do in SQL?

Creates a new SQL database Signup and view all the answers

Which SQL command is used to remove rows from a named table?

DELETE Signup and view all the answers

Which of the following is NOT a use of SQL?

Retrieving subsets of information from a database Signup and view all the answers

What is the most basic unit of a database?

Table Signup and view all the answers

Which of the following is a logical representation of data assembled from one or more database tables?

View Signup and view all the answers

Which organization adopted the official SQL standard in 1986?

American National Standards Institute (ANSI) Signup and view all the answers

Which of the following is true about aggregation functions in SQL?

Aggregation functions can be used to compute average values Signup and view all the answers

What happens when an attribute is not part of the GROUP BY clause in a SQL query?

It results in an error Signup and view all the answers

Which category does SQL fall under?

Data manipulation language Signup and view all the answers

Which two organizations have approved SQL as a standard for decades?

ANSI and ISO Signup and view all the answers

Which two companies rely largely on solutions revolving around the SQL language?

Oracle and Microsoft Signup and view all the answers

What are the four components of the LAMP stack?

Linux, Apache, MySQL, PHP Signup and view all the answers

What is the acronym for the style of applications that involve Create, Read, Update, and Delete operations?

CRUD Signup and view all the answers

Which statement accurately describes the UPDATE command in SQL?

The UPDATE command is used to make changes to rows or records in a specific table. Signup and view all the answers

What is the main purpose of SQL-on-Hadoop tools?

To enable organizations to use SQL as a querying language and develop batch processing applications. Signup and view all the answers

What is the main security vulnerability associated with SQL servers?

SQL injection Signup and view all the answers

Which of the following roles can benefit from SQL experience?

All of the above Signup and view all the answers

Which of the following is true about SQL?

SQL is a programming language for relational databases Signup and view all the answers

What is the purpose of normalization in SQL database design?

To reduce duplication of data Signup and view all the answers

Which of the following is NOT a characteristic of a relational database?

Data is stored in a hierarchical structure Signup and view all the answers

What is the purpose of the ORDER BY clause in SQL?

To sort the result set in ascending or descending order Signup and view all the answers

Database Normalization and Efficient SQL Design Quiz

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Questions and Answers

Which of the following is true about SQL?

What does RDBMS stand for?

What is a record in a database table?

Which type of SQL command is used to define data tables?

Which SQL command is used to narrow down the amount of data selected from a table?

What does the CREATE command do in SQL?

Which SQL command is used to remove rows from a named table?

Which of the following is NOT a use of SQL?

What is the most basic unit of a database?

Which of the following is a logical representation of data assembled from one or more database tables?

Which organization adopted the official SQL standard in 1986?

Which of the following is true about aggregation functions in SQL?

What happens when an attribute is not part of the GROUP BY clause in a SQL query?

Which category does SQL fall under?

Which two organizations have approved SQL as a standard for decades?

Which two companies rely largely on solutions revolving around the SQL language?

What are the four components of the LAMP stack?

What is the acronym for the style of applications that involve Create, Read, Update, and Delete operations?

Which statement accurately describes the UPDATE command in SQL?

What is the main purpose of SQL-on-Hadoop tools?

What is the main security vulnerability associated with SQL servers?

Which of the following roles can benefit from SQL experience?

Which of the following is true about SQL?

What is the purpose of normalization in SQL database design?

Which of the following is NOT a characteristic of a relational database?

What is the purpose of the ORDER BY clause in SQL?

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