[QUIZ] Test Your Understanding of SQL - Part 5

This article presents [QUIZ] Test Your Understanding of SQL - Part 5 in a clear, structured format. It helps readers review key concepts, test their understanding, and learn from the material.

Understanding [QUIZ] Test Your Understanding of SQL

• Question 1: Which of the following SQL statements has the correct syntax?
  • SELECT CustomerName, COUNT (CustomerName) FROM ORDER BY OrdersName CustomerName.
  • SELECT CustomerName, COUNT (CustomerName) FROM Orders GROUP BY CustomerName.
  • SELECT CustomerName, COUNT (CustomerName) FROM Orders.
• Question 2: Which of the following SQL statements has the correct syntax?
  • SELECT * FROM Table1 WHERE Column1 = = 10.
  • SELECT * FROM Table1 WHERE Column1 => 10
  • SELECT * FROM Table1 WHERE Column1> = 10
• Question 3: Which SQL statements insert data into the Projects table?
  • SAVE INTO Projects (ProjectName, ProjectDescription) VALUES ('Content Development', 'Website content development project')
  • INSERT Projects VALUES ('Content Development', 'Website content development project')
  • INSERT Projects ('Content Development', 'Website content development project')
  • INSERT INTO Projects (ProjectName, ProjectDescription) VALUES ('Content Development', 'Website content development project')
• Question 4: Which of the following SQL statements has the correct syntax?
  • SELECT Username, Password WHERE Username = 'user1'.
  • SELECT Username AND Password FROM Users
  • SELECT Username, Password FROM Users
• Question 5: Which SQL keyword is used to only retrieve unique values?
  • DISTINCTIVE
  • UNIQUE
  • DISTINCT
  • DIFFERENT
• What does sentence 6: VIEW mean in SQL?
  • Is a database diagram.
  • A virtual table in a database with content defined through a certain SQL statement.
  • Is a stored procedure specifically performed when certain events occur.
• Question 7: Which international standard does SQL meet?
  • Only ISO (International Organization for Standardization)
  • Only meet ANSI (American National Standards Institute) standards.
  • Meets both ISO and ANSI standards
• Question 8: What does DML mean?
  • Different Mode Level
  • Data Manipulation language
  • Data Mode Lane
  • Data Model Language
• Question 9: Which of the following SQL statements will generate errors when executing?
  • CREATE DATABASE students
  • CREATE DATABASE students;
  • IF NOT EXISTS CREATE DATABASE STUDENTS;
• Question 10: The ORDER clause is used to sort records in ascending or descending order.
  • It's correct
  • False
• Question 11: Which of the following statements will successfully execute?
  • SELECT customer FROM customer_name;
  • SELECT FROM customers customer name;
  • SELECT customer_name FROM customers ORDER BY zone WHERE cat_id = 12;
  • SELECT customer_name FROM customers WHERE cat_id = 12 ORDER BY cat_id;
• Question 12: GROUP BY command cannot be used with aggregation functions.
  • It's correct
  • False
• Question 13: In the following functions, what is the aggregate function in SQL?
  • CURDATE ()
  • COUNT
  • AVERAGE
  • MAXIMUM
• Question 14: The UNION command is used to combine results from multiple queries into a result set.
  • It's correct
  • False
• Question 15: What is the correct order of the ">" and "=" operators when you want to specify greater or equal search conditions?
  • > =
  • =>
  • Both answers are correct