D427 Data Management Applications - Set 1 - 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 clause is used to restrict the number of rows returned in a query?

WHERE

LIMIT

TOP

DISTINCT

Question 42: How do you select all records where a column value ends with 'S'?

WHERE Column ENDS WITH 'S'

WHERE Column LIKE '%S'

WHERE Column = 'S%'

WHERE Column ENDS 'S'

Question 43: What is the result of using the SQL UNION operator?

It removes duplicates from two tables

It combines results from two SELECT queries without duplicates

It updates data across two tables

It deletes data from two tables

Question 44: Which SQL keyword is used to combine rows from two tables with matching columns?

MERGE

JOIN

LINK

MATCH

Question 45: Which SQL clause is used to specify the number of rows to return in SQL Server?

LIMIT

TOP

MAX

FILTER

Question 46: What is the SQL operator used to check for a NULL value?

IS NOT NULL

IS NULL

= NULL

CHECK NULL

Question 47: Which SQL clause is used to aggregate data into groups?

GROUP BY

ORDER BY

HAVING

FILTER

Question 48: Which SQL function is used to return the current date?

TODAY()

NOW()

CURRENT_DATE()

GETDATE()

Question 49: Which SQL command is used to remove duplicates in a result set?

REMOVE DUPLICATES

DISTINCT

DELETE DUPLICATES

NONE

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

SPLIT()

SUBSTRING()

MID()

PART()

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