Oracle WHERE Clause Quiz

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What is the purpose of the Oracle WHERE clause?

To specify a condition for filtering rows returned by a query (correct)

To join multiple tables together

To group rows based on a specific column

To specify the order in which the rows are returned

Where does the WHERE clause appear in a SQL statement?

After the FROM clause but before the ORDER BY clause (correct)

After the SELECT clause

Before the FROM clause

After the ORDER BY clause

Which of the following operators can be used in the WHERE clause to compare values?

LIKE

All of the above (correct)

BETWEEN

IN

Which logical operators can be used to combine conditions in the WHERE clause?

AND, OR, and NOT (A) Signup and view all the answers

What is the purpose of the LIKE operator in the WHERE clause?

To match rows based on a specified pattern (C) Signup and view all the answers

Which of the following statements is true about the BETWEEN operator?

It finds rows that have a value between two values (A) Signup and view all the answers

Which of the following is an example of using the IN operator in the WHERE clause?

SELECT * FROM products WHERE category_id IN (1, 2, 3) (B) Signup and view all the answers

What is the order in which Oracle evaluates clauses in a SQL statement?

FROM, WHERE, and SELECT (B) Signup and view all the answers

Which of the following statements is true about the DELETE statement?

It can use the WHERE clause to specify which rows to delete (D) Signup and view all the answers

Which of the following statements is true about the UPDATE statement?

It can use the WHERE clause to specify which rows to update (D) Signup and view all the answers

What is the purpose of the WHERE clause in Oracle?

It specifies a search condition for filtering rows returned by a query (C) Signup and view all the answers

Where does the WHERE clause appear in a SQL statement?

After the FROM clause (C) Signup and view all the answers

Which logical operators can be used to combine multiple conditions in the WHERE clause?

AND, OR, NOT (C) Signup and view all the answers

What is the purpose of the BETWEEN operator in the WHERE clause?

To find rows that have a value between two specified values (C) Signup and view all the answers

Which operator is used to query rows that are in a list of values?

IN (C) Signup and view all the answers

Which comparison operator can be used to check if a value is not equal to another value?

<> (B) Signup and view all the answers

What is the order in which Oracle evaluates clauses in a SQL statement?

FROM, WHERE, SELECT (D) Signup and view all the answers

What is the purpose of the DELETE statement in Oracle?

To delete existing rows from a table (D) Signup and view all the answers

Which operator can be used to select rows whose values are greater than or equal to a specified value?

<blockquote> = (F) </blockquote> Signup and view all the answers

Which comparison operator is used to check if a value is equal to any value in a list of values?

IN (D) Signup and view all the answers

Which comparison operator is used to check if a value is not equal to any value in a list of values?

NOT IN (A) Signup and view all the answers

Which comparison operator is used to check if a subquery returns at least one row?

EXISTS (D) Signup and view all the answers

Which of the following is true about the BETWEEN operator?

It is equivalent to the >= and <= operators (D) Signup and view all the answers

What does the EXISTS operator do?

Returns true if the subquery returns at least one row (C) Signup and view all the answers

Which operator is used to test for NULL values?

IS NULL (D) Signup and view all the answers

Oracle WHERE Clause Quiz

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Questions and Answers

What is the purpose of the Oracle WHERE clause?

Where does the WHERE clause appear in a SQL statement?

Which of the following operators can be used in the WHERE clause to compare values?

Which logical operators can be used to combine conditions in the WHERE clause?

What is the purpose of the LIKE operator in the WHERE clause?

Which of the following statements is true about the BETWEEN operator?

Which of the following is an example of using the IN operator in the WHERE clause?

What is the order in which Oracle evaluates clauses in a SQL statement?

Which of the following statements is true about the DELETE statement?

Which of the following statements is true about the UPDATE statement?

What is the purpose of the WHERE clause in Oracle?

Where does the WHERE clause appear in a SQL statement?

Which logical operators can be used to combine multiple conditions in the WHERE clause?

What is the purpose of the BETWEEN operator in the WHERE clause?

Which operator is used to query rows that are in a list of values?

Which comparison operator can be used to check if a value is not equal to another value?

What is the order in which Oracle evaluates clauses in a SQL statement?

What is the purpose of the DELETE statement in Oracle?

Which operator can be used to select rows whose values are greater than or equal to a specified value?

Which comparison operator is used to check if a value is equal to any value in a list of values?

Which comparison operator is used to check if a value is not equal to any value in a list of values?

Which comparison operator is used to check if a subquery returns at least one row?

Which of the following is true about the BETWEEN operator?

What does the EXISTS operator do?

Which operator is used to test for NULL values?

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