Test your basic knowledge |

SQL: Structured Query Language

Subject : it-skills

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Method used to copy multiple records at one time using a SELECT statement
Database
INSERT INTO
Self-Join
Primary Key

2. A type of allowed data. Every table column has a datatype that restricts specific data in that column.
Datatype
ANY
UPDATE
char(size)

3. Primary way to do a query in SQL
MIN()
Use of Whitespace
SELECT Statement
Database

4. Limits the output of the established groups into the derived result group.
Logical Operators
Simple Subquery
HAVING
UPDATE

5. A single field in a table. All tables are made up of one or more columns.
Column
AVG()
INSERT INTO
Table

6. A column or set of columns whose values uniquely identify every row in a table.
UPDATE
Primary Key
INSERT INTO
Use of Whitespace

7. Used to nest subqueries within another subquery.
Nested Subquery
SELECT
Comparison Operators
Use of Whitespace

8. Multiple SQL statements must be separated by semicolons.
SELECT
SUM()
Terminating Statements
DELETE

9. The container - usually a file or set of files - to store organized data
varchar(size)
Row
Database
AS

10. Provides a numerical tally of how many rows meet a specific set of criteria.
MAX()
COUNT()
Column
Self-Join

11. Limits the rows that appear in the result to those matching a specified condition
ANY
WHERE
MAX()
DELETE

12. A reserved word that is part of the SQL language. Never name a table or column using a keyword.
ASC
Simple Subquery
Keyword
Row

13. All extra whitespace within a SQL statement is is ignored when that statement is processed.
HAVING
COUNT()
Use of Whitespace
Database

14. A record in a table
SQL (Structured Query Language)
Primary Key
Row
FROM

15. Allows a comparison with multiple values from a list.
application
Simple Subquery
INSERT INTO
IN

16. Takes a single numeric or alphabetic cloumn and finds the HIGHEST constant value within it.
MAX()
Use of Whitespace
DESC
HAVING

17. Alias
Always define Primary Keys
INSERT INTO
AS
SQL (Structured Query Language)

18. When selecting multiple columns be sure to specify a _____ BETWEEN each column name but NOT after the last column name.
Commas
Comparison Operators
Table
SQL (Structured Query Language)

19. Descending
Logical Operators
Nested Subquery
DESC
DELETE

20. Allows you to delete selected rows.
DISTINCT
Datatype
DELETE
varchar(size)

21. Allows you to correlate information between different rows of the same table and combine this information in rows of a result table.
number(size -d)
Self-Join
Terminating Statements
Nested Subquery

22. Variable-length character string. Max size is specified in parenthesis.
DELETE
SELECT *
SUM()
varchar(size)

23. Specify one or more columns on which to order the display.
SELECT
Self-Join
ORDER BY
WHERE

24. Usually DBMS specific - these can provide extra functionality or simplified ways to perform specific operations.
SQL (Structured Query Language)
SQL extensions
Terminating Statements
INSERT INTO

25. Denotes that the search condition is TRUE for at least one element that the subquery returns.
ANY
Logical Operators
mysql
char(size)

26. _______ column name FROM table name
SELECT
Keyword
AS
Datatype

27. A structured list of data of a specific type
mysql
DISTINCT
DESC
Table

28. Database software (an application)
DBMS - Database Management System
Always define Primary Keys
ASC
char(size)

29. COUNT() - MAX() - MIN() - SUM() and AVG()
ASC
IN
UPDATE
Aggregate Functions

30. Combines rows from a SELECT statement's results table into groups in which specified columns have the same value.
GROUP BY
FROM
Terminating Statements
Nested Subquery

31. Data must be broken into multiple columns correctly. For example - city - state - and zip should always separate columns.
Breaking up data
MIN()
DELETE
char(size)

32. Number value with a maximum number of digits of "size" total - with a maximum number of "d" digits to the right of the decimal.
UPDATE
DESC
number(size -d)
DELETE

33. Prevents duplicate values witihin a table or group of rows from being used in the evaluation of the function's result
ORDER BY
DBMS - Database Management System
DISTINCT
Database

34. Although primary keys are not specifically required - most database designers make certain that every table they create has a primary key so that future data manipulation is possible.
number(size -d)
IN
ORDER BY
Always define Primary Keys

35. = Equals - < Less Than - > Greater Than - <= Less Than or Equal To - >= Greater Than or Equal To - <> Not Equal - ! Negation of
DISTINCT
LIKE
Comparison Operators
GROUP BY

36. Fixed-length character string. Size is specified in parenthesis. Max 255 bytes.
application
WHERE
Row
char(size)

37. Simplest type of subquery.
Simple Subquery
SQL Statement and Case
Terminating Statements
varchar(size)

38. Lets you use a single- or multiple-character wildcards. Also - this command does not function in Microsoft Access.
IN
WHERE
MIN()
LIKE

39. Specifies the tables or views from which rows and columns are retrieved
AS
FROM
IN
Simple Subquery

40. SQL statements are case- insensitive
Comparison Operators
Breaking up data
COUNT()
SQL Statement and Case

41. Used to select all the information in a specified column.
Datatype
DISTINCT
SELECT *
Table

42. Lets you change the values in one or more selected rows of a table.
DISTINCT
Primary Key
MIN()
UPDATE

43. NOT - AND - OR
Logical Operators
Terminating Statements
COUNT()
Aggregate Functions

44. SQL is a language NOT an _______
AS
Nested Subquery
WHERE
application

45. A popular open source database
mysql
UPDATE
HAVING
SQL (Structured Query Language)

46. Ascending
ASC
AVG()
GROUP BY
Comparison Operators

47. A language designed specifically for communicating with databases.
SQL (Structured Query Language)
MAX()
Keyword
DESC

48. Takes a single numeric or alphabetic cloumn and finds the LOWEST constant value within it.
MIN()
SUM()
DELETE
FROM

49. Takes average of each of the numeric values in the column.Can only be used in conjuction with the DISTINCT keyword and only works on numeric columns.
AVG()
application
Terminating Statements
SQL (Structured Query Language)

50. Takes all of the values in that column and adds them together. Only works on columns containing numeric data.
Nested Subquery
Commas
SUM()
Simple Subquery

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Major Subjects
Tests & Exams AP CLEP DSST GRE SAT GMAT	Certifications CISSP go to https://www.isc2.org/ PMP ITIL RHCE MCTS More...	IT Skills Android Programming Data Modeling Objective C Programming Basic Python Programming Adobe Illustrator More...	Business Skills Advertising Techniques Business Accounting Basics Business Strategy Human Resource Management Marketing Basics More...
Soft Skills Body Language People Skills Public Speaking Persuasion Job Hunting And Resumes More...	Vocabulary GRE Vocab SAT Vocab TOEFL Essential Vocab Basic English Words For All Global Words You Should Know Business English More...	Languages AP German Vocab AP Latin Vocab SAT Subject Test: French Italian Survival Norwegian Survival More...	Engineering Audio Engineering Computer Science Engineering Aerospace Engineering Chemical Engineering Structural Engineering More...
Health Sciences Basic Nursing Skills Health Science Language Fundamentals Veterinary Technology Medical Language Cardiology Clinical Surgery More...	English Grammar Fundamentals Literary And Rhetorical Vocab Elements Of Style Vocab Introduction To English Major Complete Advanced Sentences Literature Homonyms More...	Math Algebra Formulas Basic Arithmetic: Measurements Metric Conversions Geometric Properties Important Math Facts Number Sense Vocab Business Math More...	Other Major Subjects Science Economics History Law Performing-arts Cooking Logic & Reasoning Trivia

Test your basic knowledge |

SQL: Structured Query Language

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests

Major Subjects

Tests & Exams

Certifications

IT Skills

Business Skills

Soft Skills

Vocabulary

Languages

Engineering

Health Sciences

English

Math

Other Major Subjects

Browse all subjects

Browse all tests

Most popular tests