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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Objectives |
| Controlling User Access | - Grant and revoke privileges
- Differentiate system privileges from object privileges
- Create and manage roles
|
| Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators
|
| Using SELECT Statements | - Use the WHERE clause to restrict rows
- Execute a basic SELECT statement
- Use the FETCH clause to limit rows returned
- Use the ORDER BY clause to sort rows
|
| Using DDL Statements | - Create and manage sequences
- Create and manage tables
- Create and manage indexes
- Create and manage views
- Create and manage constraints
|
| Using Subqueries | - Use multiple-row subqueries
- Use correlated subqueries
- Use single-row subqueries
|
| Using Joins | - Use cross joins
- Use equijoins and non-equijoins
- Use outer joins (LEFT, RIGHT, FULL)
- Use self-joins
|
| Using SQL Functions | - Use character, number, and date functions in SELECT statements
- Use conversion functions
|
| Using DML Statements | - Use the MERGE statement
- Update rows in a table
- Control transactions
- Insert rows into a table
- Delete rows from a table
|
Oracle Database 23ai SQL Associate Sample Questions:
1. In a relational database, what is a foreign key?
A) A temporary key generated during query execution
B) A key that is used to establish a relationship between two tables
C) A unique identifier for a record in a table
D) A key used to sort data in a specific order
2. Which command would drop an index from a table?
A) TRUNCATE INDEX
B) DROP INDEX
C) DELETE INDEX
D) REMOVE INDEX
3. What is the purpose of the SAVEPOINT statement?
A) To delete data temporarily
B) To restart a transaction
C) To set a point within a transaction to which a rollback can occur
D) To save changes permanently
4. What will the following query do?
DELETE FROM employees
WHERE department_id = 20;
A) Delete the department_id column in the employees table
B) Delete all rows where department_id is 20
C) Delete all rows in the employees table
D) Raise an error because DELETE cannot use a WHERE clause
5. What will the following SQL statement output?
SELECT first_name || ' ' || last_name AS full_name FROM employees;
A) A syntax error
B) Concatenated first and last names without spaces
C) Only the first names of employees
D) Concatenated first and last names with spaces in between
Solutions:
Question # 1 Answer: B | Question # 2 Answer: B | Question # 3 Answer: C | Question # 4 Answer: B | Question # 5 Answer: D |