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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Using SQL Functions | - Use conversion functions - Use character, number, and date functions in SELECT statements |
| Topic 2: Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Topic 3: Using Subqueries | - Use correlated subqueries - Use multiple-row subqueries - Use single-row subqueries |
| Topic 4: Using Joins | - Use self-joins - Use outer joins (LEFT, RIGHT, FULL) - Use equijoins and non-equijoins - Use cross joins |
| Topic 5: Controlling User Access | - Grant and revoke privileges - Create and manage roles - Differentiate system privileges from object privileges |
| Topic 6: Using DDL Statements | - Create and manage sequences - Create and manage constraints - Create and manage indexes - Create and manage tables - Create and manage views |
| Topic 7: Using DML Statements | - Update rows in a table - Insert rows into a table - Use the MERGE statement - Control transactions - Delete rows from a table |
| Topic 8: Using SELECT Statements | - Use the ORDER BY clause to sort rows - Execute a basic SELECT statement - Use the WHERE clause to restrict rows - Use the FETCH clause to limit rows returned |
Oracle Database 23ai SQL Associate Sample Questions:
What does the NEXTVAL pseudocolumn do in SQL?
- A. Resets the sequence to its starting value
- B. Deletes the sequence from the database
- C. Retrieves the current value of a sequence without incrementing it
- D. Retrieves the next value in a sequence and increments the sequence
Correct Answer: D 🗳️
How is the LOCALTIMESTAMP function different from CURRENT_TIMESTAMP?
- A. LOCALTIMESTAMP does not include fractional seconds, while CURRENT_TIMESTAMP does.
- B. LOCALTIMESTAMP omits time zone information, while CURRENT_TIMESTAMP includes it.
- C. Both functions are identical in output.
- D. LOCALTIMESTAMP returns only the date, while CURRENT_TIMESTAMP returns the date and time.
Correct Answer: B 🗳️
What does the following SQL query return?
SELECT employee_id, salary * 12 AS annual_salary FROM employees;
- A. Monthly salaries of all employees
- B. Employee IDs and their annual salaries
- C. Salaries multiplied by 12 and stored in a new table
- D. Only employees with salaries greater than 12
Correct Answer: B 🗳️
Which type of subquery returns exactly one value?
- A. Correlated subquery
- B. Multiple-row subquery
- C. Scalar subquery
- D. Inline view
Correct Answer: C 🗳️
What does the following command do?
GRANT CREATE SESSION TO user_name;
- A. Allows the user to create database objects
- B. Assigns the user to a specific role
- C. Allows the user to create new sessions for other users
- D. Grants the user the ability to connect to the database
Correct Answer: D 🗳️
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