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Structure of the CUSTOMERS table ​ Structure of the ORDERS table Structure of the ORDERITEMS table Structure of the BOOKS table -Which of the following SQL statements will display the title of all books that have had multiple copies requested in a single order?​ A) ​SELECT title FROM books NATURAL JOIN orderitems WHERE qty > 1; B) ​SELECT title FROM books JOIN orderitems WHERE qty > 1; C) ​SELECT title FROM books JOIN orderitems ON (isbn) JOIN orders ON (order#) WHERE qty>1; D) ​SELECT title FROM books JOIN orderitems USING(isbn) ; Structure of the CUSTOMERS table Structure of the CUSTOMERS table ​ Structure of the ORDERS table Structure of the ORDERITEMS table Structure of the BOOKS table -Which of the following SQL statements will display the title of all books that have had multiple copies requested in a single order?​ A) ​SELECT title FROM books NATURAL JOIN orderitems WHERE qty > 1; B) ​SELECT title FROM books JOIN orderitems WHERE qty > 1; C) ​SELECT title FROM books JOIN orderitems ON (isbn) JOIN orders ON (order#) WHERE qty>1; D) ​SELECT title FROM books JOIN orderitems USING(isbn) ; ​ Structure of the ORDERS table Structure of the CUSTOMERS table ​ Structure of the ORDERS table Structure of the ORDERITEMS table Structure of the BOOKS table -Which of the following SQL statements will display the title of all books that have had multiple copies requested in a single order?​ A) ​SELECT title FROM books NATURAL JOIN orderitems WHERE qty > 1; B) ​SELECT title FROM books JOIN orderitems WHERE qty > 1; C) ​SELECT title FROM books JOIN orderitems ON (isbn) JOIN orders ON (order#) WHERE qty>1; D) ​SELECT title FROM books JOIN orderitems USING(isbn) ; Structure of the ORDERITEMS table Structure of the CUSTOMERS table ​ Structure of the ORDERS table Structure of the ORDERITEMS table Structure of the BOOKS table -Which of the following SQL statements will display the title of all books that have had multiple copies requested in a single order?​ A) ​SELECT title FROM books NATURAL JOIN orderitems WHERE qty > 1; B) ​SELECT title FROM books JOIN orderitems WHERE qty > 1; C) ​SELECT title FROM books JOIN orderitems ON (isbn) JOIN orders ON (order#) WHERE qty>1; D) ​SELECT title FROM books JOIN orderitems USING(isbn) ; Structure of the BOOKS table -Which of the following SQL statements will display the title of all books that have had multiple copies requested in a single order?​


A) ​SELECT title
FROM books NATURAL JOIN orderitems
WHERE qty > 1;
B) ​SELECT title
FROM books JOIN orderitems
WHERE qty > 1;
C) ​SELECT title
FROM books JOIN orderitems ON (isbn) JOIN orders ON (order#)
WHERE qty>1;
D) ​SELECT title
FROM books JOIN orderitems USING(isbn) ;

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The most common type of join is an equijoin,which joins two or more tables together based upon the tables having equivalent data values in a common column.​

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​ Contents of the PROMOTION table Structure of the BOOKS table -Which of the following SQL statements will display the gift that should be sent to any customer who orders the book titled SHORTEST POEMS?​ A) SELECT gift FROM promotion WHERE gift = minretail; B) SELECT gift FROM promotion,books WHERE retail >= minretail AND title = 'SHORTEST POEMS'; C) SELECT gift FROM promotion,books WHERE retail BETWEEN minretail AND maxretail AND title = 'SHORTEST POEMS'; D) ​none of the above ​ Contents of the PROMOTION table ​ Contents of the PROMOTION table Structure of the BOOKS table -Which of the following SQL statements will display the gift that should be sent to any customer who orders the book titled SHORTEST POEMS?​ A) SELECT gift FROM promotion WHERE gift = minretail; B) SELECT gift FROM promotion,books WHERE retail >= minretail AND title = 'SHORTEST POEMS'; C) SELECT gift FROM promotion,books WHERE retail BETWEEN minretail AND maxretail AND title = 'SHORTEST POEMS'; D) ​none of the above Structure of the BOOKS table -Which of the following SQL statements will display the gift that should be sent to any customer who orders the book titled SHORTEST POEMS?​


A) SELECT gift FROM promotion
WHERE gift = minretail;
B) SELECT gift FROM promotion,books
WHERE retail >= minretail AND title = 'SHORTEST POEMS';
C) SELECT gift FROM promotion,books
WHERE retail BETWEEN minretail AND maxretail
AND title = 'SHORTEST POEMS';
D) ​none of the above

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​To display rows from one table that do not have a corresponding row in the other table,you must create a(n)____________________ join.

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A self-join can only be specified in the FROM clause with the use of the JOIN...____________________ keywords.

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Which of the following types of joins is created by matching equivalent values in each table?​


A) ​Cartesian join
B) ​equality join
C) ​non-equality join
D) ​outer join

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An outer join only lists rows that contain a match in both tables.​

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​The ____________________ set operator is used to display the results that were returned by the first query that were not also returned by the second query.

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Which of the following is used to create an outer join in a WHERE clause?​


A) ​FULL OUTER JOIN keywords
B) ​LEFT OUTER JOIN keywords
C) ​RIGHT OUTER JOIN keywords
D) ​outer join operator (+)

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​A(n)____________________ outer join is necessary when you need rows returned from either table that do not have a matching record in the other table.

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Equality,non-equality,and self-joins are all categorized as inner joins.​

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​A full outer join cannot be created in the ____________________ clause.

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The JOIN keyword is used in the WHERE clause to indicate the tables that should be joined or linked.

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Structure of the CUSTOMERS table ​ Structure of the ORDERS table Structure of the ORDERITEMS table Structure of the BOOKS table -​To display the name of each customer and the ISBN of each book purchased by the customers would require how many joins in the FROM clause of the SQL statement? A) ​4 B) ​3 C) ​2 D) ​1 Structure of the CUSTOMERS table Structure of the CUSTOMERS table ​ Structure of the ORDERS table Structure of the ORDERITEMS table Structure of the BOOKS table -​To display the name of each customer and the ISBN of each book purchased by the customers would require how many joins in the FROM clause of the SQL statement? A) ​4 B) ​3 C) ​2 D) ​1 ​ Structure of the ORDERS table Structure of the CUSTOMERS table ​ Structure of the ORDERS table Structure of the ORDERITEMS table Structure of the BOOKS table -​To display the name of each customer and the ISBN of each book purchased by the customers would require how many joins in the FROM clause of the SQL statement? A) ​4 B) ​3 C) ​2 D) ​1 Structure of the ORDERITEMS table Structure of the CUSTOMERS table ​ Structure of the ORDERS table Structure of the ORDERITEMS table Structure of the BOOKS table -​To display the name of each customer and the ISBN of each book purchased by the customers would require how many joins in the FROM clause of the SQL statement? A) ​4 B) ​3 C) ​2 D) ​1 Structure of the BOOKS table -​To display the name of each customer and the ISBN of each book purchased by the customers would require how many joins in the FROM clause of the SQL statement?


A) ​4
B) ​3
C) ​2
D) ​1

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If you are joining four tables in a SELECT statement,three joining conditions will be required._________________________​

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Structure of the BOOKS table Structure of the PUBLISHER table -Which of the following SQL statements will display the name of each publisher that publishes a book classified in the COMPUTER category?​ A) SELECT UNIQUE name FROM books,publisher; B) SELECT UNIQUE name FROM books NATURAL JOIN publisher WHERE category = 'COMPUTER'; C) SELECT DISTINCT name FROM books JOIN publisher WHERE category = 'COMPUTER'; D) ​both b and c Structure of the BOOKS table Structure of the BOOKS table Structure of the PUBLISHER table -Which of the following SQL statements will display the name of each publisher that publishes a book classified in the COMPUTER category?​ A) SELECT UNIQUE name FROM books,publisher; B) SELECT UNIQUE name FROM books NATURAL JOIN publisher WHERE category = 'COMPUTER'; C) SELECT DISTINCT name FROM books JOIN publisher WHERE category = 'COMPUTER'; D) ​both b and c Structure of the PUBLISHER table -Which of the following SQL statements will display the name of each publisher that publishes a book classified in the COMPUTER category?​


A) SELECT UNIQUE name
FROM books,publisher;
B) SELECT UNIQUE name
FROM books NATURAL JOIN publisher
WHERE category = 'COMPUTER';
C) SELECT DISTINCT name
FROM books JOIN publisher
WHERE category = 'COMPUTER';
D) ​both b and c

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A column ____________________ indicates the table containing the column being referenced.​

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____________________ operators are used to combine the results of multiple queries.

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​The outer join operator in the WHERE clause cannot be used with which of the following operators?


A) ​IN
B) ​OR
C) ​AND
D) ​both a and b

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A table alias is assigned in the FROM clause._________________________​

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