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BUAN Final Exam Expected Questions and Answers

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BUAN Final Exam Expected Questions and Answers What SELECT statement clause cannot be used when embedded in a JOIN? - ANSWER-ORDER BY What type of JOIN returns all rows from the second table and any matching rows from the first table? - ANSWER-RIGHT OUTER JOIN When deciding whether to use a RI...

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  • November 3, 2024
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BUAN Final Exam Expected Questions and

Answers


What SELECT statement clause cannot be used when embedded in a JOIN? - ANSWER✔✔-ORDER BY


What type of JOIN returns all rows from the second table and any matching rows from the first table? -

ANSWER✔✔-RIGHT OUTER JOIN


When deciding whether to use a RIGHT OUTER JOIN or a LEFT OUTER JOIN, which factor matters the

most? - ANSWER✔✔-The order in which the tables are listed in the FROM clause


What type of JOIN returns all rows from the first table and any matching rows from the second table? -

ANSWER✔✔-LEFT OUTER JOIN


What character is used to embed a SELECT or a JOIN within another JOIN? - ANSWER✔✔-Parentheses ()


Which process could you use to find Students who have not signed up for any Classes? - ANSWER✔✔-

Include "FROM Students LEFT JOIN Classes" in your query and then test for NULL values in Classes

columns in the WHERE clause.


To complete a LEFT OUTER JOIN, what keyword is optional? - ANSWER✔✔-OUTER


Which FROM clause is the equivalent of the following:



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FROM Products LEFT JOIN Categories - ANSWER✔✔-FROM Categories RIGHT JOIN Products


Which of the following is a request that can be answered using an OUTER JOIN? - ANSWER✔✔-What

products have never been ordered?


Which is the only element of an INNER JOIN that is required? - ANSWER✔✔-JOIN


Where is the ORDER BY clause placed to sort the results of a UNION? - ANSWER✔✔-At the end of the

last SELECT statement


Which of the following is a requirement for the columns of the SELECT statements in a UNION? -

ANSWER✔✔-Both of these are requirements.


If the ALL keyword is included in the UNION, how many rows will be returned in the result set? -

ANSWER✔✔-Equal to the sum of the number of rows returned by each SELECT statement.


A UNION combines two of these. - ANSWER✔✔-SELECT statement


The ORDER BY clause can reference columns by their name and what other alternative method? -

ANSWER✔✔-The relative column number starting with 1 as the first column


What type of subquery is an embedded SELECT expression that returns one or more columns and zero to

many rows? - ANSWER✔✔-Table subquery


In what clause can subqueries be used? - ANSWER✔✔-SELECT


All of these clauses-Correct answer


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