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Last Updated: Jul 25, 2026
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| Section | Objectives |
|---|---|
| Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
| Using SQL Functions | - Use character, number, and date functions in SELECT statements - Use conversion functions |
| Using DML Statements | - Insert rows into a table - Update rows in a table - Delete rows from a table - Control transactions - Use the MERGE statement |
| Using DDL Statements | - Create and manage sequences - Create and manage constraints - Create and manage tables - Create and manage indexes - Create and manage views |
| Controlling User Access | - Create and manage roles - Grant and revoke privileges - Differentiate system privileges from object privileges |
| Using Joins | - Use cross joins - Use equijoins and non-equijoins - Use self-joins - Use outer joins (LEFT, RIGHT, FULL) |
| Using Subqueries | - Use single-row subqueries - Use multiple-row subqueries - Use correlated subqueries |
| Using SELECT Statements | - Use the ORDER BY clause to sort rows - Use the WHERE clause to restrict rows - Execute a basic SELECT statement - Use the FETCH clause to limit rows returned |
1. What happens when a temporary table is created in Oracle Database?
A) It is created for the duration of a user session or transaction.
B) It cannot have any constraints.
C) It is stored in external files.
D) It is permanently stored in the database.
2. Which of the following best describes a relational database?
A) A database where all data is stored as key-value pairs
B) A database that organizes data hierarchically
C) A database that uses a tabular structure with rows and columns to represent relationships between data entities
D) A flat file system with no defined relationships between data
3. What is the purpose of the SAVEPOINT statement?
A) To save changes permanently
B) To set a point within a transaction to which a rollback can occur
C) To delete data temporarily
D) To restart a transaction
4. What does the following SQL query do?
SELECT *
FROM employees e
JOIN employees m ON e.manager_id = m.employee_id;
A) Lists employees and their corresponding managers
B) Lists employees without departments
C) Lists employees who are managers
D) Lists employees who are not managers
5. Which of the following ensures that a relational database enforces data integrity?
A) Hierarchical data organization
B) Indexes on all columns
C) Redundant data storage
D) Constraints such as primary keys, foreign keys, and unique constraints
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: C | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: D |
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