D426 Data Management Foundations - Set 3 - Part 3

Test your knowledge of technical writing concepts with these practice questions. Each question includes detailed explanations to help you understand the correct answers.

Question 41: Which SQL function is used to find the highest value in a column?

MIN()

MAX()

SUM()

AVERAGE()

Question 42: Which SQL clause is used to group rows that have the same values in specified columns?

ORDER BY

GROUP BY

HAVING

WHERE

Question 43: Which SQL command is used to remove duplicates from a result set?

DISTINCT

UNIQUE

GROUP BY

HAVING

Question 44: Which SQL function would you use to count the number of non-NULL entries in a column?

TOTAL()

COUNT()

SUM()

LENGTH()

Question 45: Which clause is used to specify the order of the result set in SQL?

SORT BY

ORDER BY

GROUP BY

ARRANGE BY

Question 46: Which SQL command is used to remove a user from a database?

DELETE USER

REMOVE USER

DROP USER

DISABLE USER

Question 47: Which SQL function is used to replace a substring with another string?

SUBSTITUTE()

REPLACE()

CHANGE()

TRANSFORM()

Question 48: Which SQL keyword is used to specify the criteria for data retrieval in a SELECT statement?

CONDITION

WHERE

HAVING

FILTER

Question 49: What is a subquery in SQL?

A query that modifies data

A query nested inside another query

A command that creates a new table

A function that summarizes data

Question 50: Which SQL function is used to extract a portion of a string?

SUBSTRING()

SPLIT()

TRIM()

CONCAT()

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