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Oracle 1Z0-171 Exam Syllabus Topics:

Oracle Database 23ai SQL Associate Sample Questions:

1. Which function is used to convert a string to uppercase in SQL?

A) TO_UPPERCASE
B) CONVERT_UPPER
C) CASE_UPPER
D) UPPER

2. What will the following SQL query return?
SELECT TRUNC(15.678, 2) AS truncated_value FROM dual;

A) 15.678
B) 15.68
C) 15.67
D) 15.6

3. Which clause can be used with SET operators to sort the final result set?

A) ORDER BY
B) GROUP BY
C) HAVING
D) WHERE

4. What does the following SQL statement do?
ALTER TABLE employees DROP COLUMN salary;

A) Deletes the employees table
B) Removes duplicate rows from the employees table
C) Drops the salary column from the employees table
D) Sets the salary column to NULL for all rows

5. What is the purpose of a correlated subquery?

A) A subquery that combines data from multiple tables
B) A subquery that can be used only with aggregate functions
C) A subquery that references columns from the outer query
D) A subquery that depends on the result of another subquery

Solutions: