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Oracle 1Z0-171 Exam Syllabus Topics:

Oracle Database 23ai SQL Associate Sample Questions:

1. What does the INTERSECT operator do in SQL?

A) Combines rows from two queries and includes all duplicates
B) Combines all rows from two queries without any conditions
C) Returns rows from the first query that are not present in the second query
D) Returns rows that are present in both queries

2. What does the COMMIT statement do in SQL?

A) Begins a new transaction
B) Rolls back changes to a previous state
C) Discards all pending changes in the transaction
D) Saves all pending changes to the database permanently

3. What will the following SQL query do?
UPDATE employees
SET salary = salary * 1.1
WHERE department_id = 10;

A) Increase the salary of employees in department 10 by 10%
B) Increase the salary of all employees by 10%
C) Set the salary to 1.1 for employees in department 10
D) Decrease the salary of employees in department 10 by 10%

4. Which clause in a SQL SELECT statement is used to define the columns to be retrieved?

A) SELECT
B) GROUP BY
C) FROM
D) WHERE

5. Which SQLPlus command displays defined substitution variable values?

A) SHOW
B) LIST
C) VERIFY
D) DEFINE

Solutions: