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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Controlling User Access | - Grant and revoke privileges - Create and manage roles - Differentiate system privileges from object privileges |
| Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Using DML Statements | - Control transactions - Delete rows from a table - Insert rows into a table - Update rows in a table - Use the MERGE statement |
| Using SQL Functions | - Use character, number, and date functions in SELECT statements - Use conversion functions |
| Using Joins | - Use outer joins (LEFT, RIGHT, FULL) - Use equijoins and non-equijoins - Use cross joins - Use self-joins |
| Using DDL Statements | - Create and manage sequences - Create and manage tables - Create and manage constraints - Create and manage indexes - Create and manage views |
| Using SELECT Statements | - Use the ORDER BY clause to sort rows - Use the WHERE clause to restrict rows - Use the FETCH clause to limit rows returned - Execute a basic SELECT statement |
| Using Subqueries | - Use correlated subqueries - Use single-row subqueries - Use multiple-row subqueries |
Oracle Database 23ai SQL Associate Sample Questions:
What is the purpose of the SAVEPOINT statement?
- A. To save changes permanently
- B. To restart a transaction
- C. To set a point within a transaction to which a rollback can occur
- D. To delete data temporarily
Correct Answer: C 🗳️
Which type of join returns all rows from the left table, even if there are no matches in the right table?
- A. INNER JOIN
- B. LEFT OUTER JOIN
- C. FULL OUTER JOIN
- D. RIGHT OUTER JOIN
Correct Answer: B 🗳️
Which SQL clause can be used in Oracle to limit the number of rows returned?
- A. DISTINCT
- B. WHERE
- C. GROUP BY
- D. FETCH FIRST n ROWS ONLY
Correct Answer: D 🗳️
What does the UNION ALL operation do when selecting matching columns from different tables?
SELECT employee_id, salary FROM employees
UNION ALL
SELECT employee_id, bonus FROM bonuses;
- A. Returns only the employees with salaries and bonuses
- B. Returns only employees with duplicate employee IDs in both tables
- C. Combines the salaries and bonuses for employees, removing duplicates
- D. Combines all employee IDs, salaries, and bonuses, including duplicates
Correct Answer: D 🗳️
Which SQL function converts a string representation of a date into a date data type?
- A. DATE_CONVERT
- B. CONVERT_TO_DATE
- C. CAST_TO_DATE
- D. TO_DATE
Correct Answer: D 🗳️
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