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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Controlling User Access | - Create and manage roles - Differentiate system privileges from object privileges - Grant and revoke privileges |
| Topic 2: Using DML Statements | - Delete rows from a table - Update rows in a table - Use the MERGE statement - Insert rows into a table - Control transactions |
| Topic 3: Using Joins | - Use equijoins and non-equijoins - Use cross joins - Use outer joins (LEFT, RIGHT, FULL) - Use self-joins |
| Topic 4: Using SELECT Statements | - Use the ORDER BY clause to sort rows - Use the FETCH clause to limit rows returned - Execute a basic SELECT statement - Use the WHERE clause to restrict rows |
| Topic 5: Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Topic 6: Using DDL Statements | - Create and manage tables - Create and manage constraints - Create and manage views - Create and manage sequences - Create and manage indexes |
| Topic 7: Using Subqueries | - Use correlated subqueries - Use single-row subqueries - Use multiple-row subqueries |
| Topic 8: Using SQL Functions | - Use conversion functions - Use character, number, and date functions in SELECT statements |
Oracle Database 23ai SQL Associate Sample Questions:
Question 1
What happens when a temporary table is created in Oracle Database?
A. It is permanently stored in the database.
B. It is created for the duration of a user session or transaction.
C. It cannot have any constraints.
D. It is stored in external files.
Question 2
What does the EXISTS operator check in a subquery?
A. If the subquery returns any rows
B. If the subquery contains only unique values
C. If the subquery references the outer query
D. If the subquery returns a specific number of rows
Question 3
What does a Cartesian product in SQL result from?
A. An OUTER JOIN with NULL values
B. An INNER JOIN without specifying join conditions
C. A NATURAL JOIN without specifying join conditions
Question 4
What is the purpose of the SAVEPOINT statement?
A. To delete data temporarily
B. To restart a transaction
C. To save changes permanently
D. To set a point within a transaction to which a rollback can occur
Question 5
What will the following query do?
SELECT employee_id, salary
FROM employees
WHERE salary > (SELECT AVG(salary) FROM employees);
A. Return all employees and their salaries
B. Return employees with a salary equal to the average salary
C. Return employees with a salary below the average salary
D. Return employees with a salary above the average salary
Solutions:
| Question 1 Answer: B | Question 2 Answer: A | Question 3 Answer: B | Question 4 Answer: D | Question 5 Answer: D |
