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1. What does SQL stand for?
Structured Language
Simple Query Language
Standardized Query Language
Sequential Query Language
jQuery
Php

Difficulty

1800
low
2. Who is often referred to as the "father of relational databases" and a pioneer in the development of SQL?
Larry Ellison
Michael Stonebraker
Donald D. Chamberlin
Edgar F. Codd
jQuery
Php

Difficulty

2000
low
3. When was the first version of SQL developed?
1970
1980
1990
2000
jQuery
Php

Difficulty

1700
low
4. Which of the following is NOT a category of SQL?
Data Definition Language (DDL)
Data Manipulation Language (DML)
Data Transaction Language (DTL)
Data Query Language (DQL)
jQuery
Php

Difficulty

1900
low
5. What is the primary purpose of SQL?
To perform complex mathematical calculations
To manage and manipulate relational databases
To create dynamic web pages
To develop machine learning algorithms
jQuery
Php

Difficulty

2000
low
6. Which company developed the first commercially available relational database management system (RDBMS) based on SQL?
IBM
Microsoft
Oracle Corporation
MySQL AB
jQuery
Php

Difficulty

2000
low
7. What language is used to communicate with and manage databases through SQL?
Database Query Language (DQL)
Structured Query Language (SQL)
Relational Database Language (RDL)
Database Interaction Language (DIL)
jQuery
Php

Difficulty

3800
high
8. In SQL, what is the purpose of the SELECT statement?
To insert data into a table
To update existing records in a table
To retrieve data from one or more tables
To delete records from a table
jQuery
Php

Difficulty

1800
low
9. Which standardization body is responsible for SQL language standardization?
World Wide Web Consortium (W3C)
International Organization for Standardization (ISO)
Internet Engineering Task Force (IETF)
SQL Standards Board
jQuery
Php

Difficulty

1900
low
10. What is the significance of the term "ACID" in the context of SQL databases?
It represents a popular SQL programming paradigm.
It is an acronym for a set of properties that guarantee reliable processing of database transactions.
It refers to a specific SQL database engine.
It stands for the primary data types used in SQL.
jQuery
Php

Difficulty

2000
low
11. What is the purpose of the SQL "CREATE" statement?
To retrieve data from a table
To update existing records in a table
To create a new table, view, or other database objects
To delete records from a table
jQuery
Php

Difficulty

2100
medium
12. Which of the following is a key feature of a relational database management system (RDBMS)?
No support for transactions
Hierarchical data structure
Tabular structure for organizing data
Limited data integrity constraints
jQuery
Php

Difficulty

2300
medium
13. In SQL, what is the purpose of the "ALTER" statement?
To retrieve data from a table
To update existing records in a table
To modify the structure of an existing database object
To delete records from a table
jQuery
Php

Difficulty

2200
medium
14. Which company introduced the first commercial implementation of SQL in 1979?
Oracle Corporation
IBM
Microsoft
MySQL AB
jQuery
Php

Difficulty

2300
medium
15. What is the role of the SQL "DROP" statement?
To retrieve data from a table
To update existing records in a table
To permanently remove a table, view, or other database objects
To delete records from a table
jQuery
Php

Difficulty

2200
medium
16. Which SQL clause is used to filter the results of a query based on a specified condition?
FROM
WHERE
SELECT
JOIN
jQuery
Php

Difficulty

2600
medium
17. What is the purpose of the SQL "INSERT" statement?
To retrieve data from a table
To update existing records in a table
To add new records to a table
To delete records from a table
jQuery
Php

Difficulty

2600
medium
18. In the context of SQL, what does the acronym "DDL" stand for?
Data Definition Language
Data Deletion Language
Data Display Language
Data Description Language
jQuery
Php

Difficulty

2700
medium
19. Which SQL function is used to find the total number of rows in a table?
TOTAL()
COUNT()
SUM()
AVG()
jQuery
Php

Difficulty

2400
medium
20. What is the primary purpose of the SQL "UPDATE" statement?
To retrieve data from a table
To create a new table
To modify existing records in a table
To delete records from a table
jQuery
Php

Difficulty

2600
medium
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