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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Using SELECT Statements | - Use the FETCH clause to limit rows returned - Execute a basic SELECT statement - Use the ORDER BY clause to sort rows - Use the WHERE clause to restrict rows |
| Controlling User Access | - Differentiate system privileges from object privileges - Grant and revoke privileges - Create and manage roles |
| Using DDL Statements | - Create and manage indexes - Create and manage constraints - Create and manage views - Create and manage tables - Create and manage sequences |
| Using Subqueries | - Use multiple-row subqueries - Use correlated subqueries - Use single-row subqueries |
| Using Joins | - Use cross joins - Use equijoins and non-equijoins - Use self-joins - Use outer joins (LEFT, RIGHT, FULL) |
| Using DML Statements | - Update rows in a table - Control transactions - Delete rows from a table - Use the MERGE statement - Insert rows into a table |
| 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 |
Oracle Database 23ai SQL Associate Sample Questions:
1. Which type of join returns all rows from the left table, even if there are no matches in the right table?
A) FULL OUTER JOIN
B) RIGHT OUTER JOIN
C) INNER JOIN
D) LEFT OUTER JOIN
2. What is the purpose of the MERGE statement in SQL?
A) To join two tables into one
B) To delete duplicate rows from a table
C) To update existing rows or insert new rows in a target table
D) To combine the results of two queries
3. 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 employees with duplicate employee IDs in both tables
B) Combines the salaries and bonuses for employees, removing duplicates
C) Combines all employee IDs, salaries, and bonuses, including duplicates
D) Returns only the employees with salaries and bonuses
4. Which clause is used to allow a user to grant a privilege to others?
A) WITH ADMIN OPTION
B) WITH SELECT OPTION
C) WITH GRANT OPTION
D) WITH SHARE OPTION
5. Which SQL keyword is used to remove duplicate rows from the result set of a query?
A) DISTINCT
B) ONLY
C) UNIQUE
D) DISTINCTROW
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: C | Question # 3 Answer: C | Question # 4 Answer: C | Question # 5 Answer: A |
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