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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage indexes - Create and manage sequences - Create and manage synonyms |
| Topic 2: Retrieving and Sorting Data | 15% | - Operator precedence rules - Arithmetic expressions and NULL values - Limiting rows and substitution variables - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases - Sorting query results - DEFINE and VERIFY commands |
| Topic 3: DDL for Tables and Relationships | 15% | - Constraints management - TRUNCATE TABLE statement - Drop columns, set unused columns - Temporary and external tables - CREATE TABLE statement - Views management - Table structure, columns, data types |
| Topic 4: Using SET Operators | 5% | - Using ORDER BY with set operations - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators |
| Topic 5: Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components - Relationship between database and SQL |
| Topic 6: Using Functions | 25% | - NVL, NULLIF, COALESCE functions - Data type conversion: implicit and explicit - ROUND, TRUNC, MOD functions - Character functions for string manipulation - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Restricting group results - Nested functions - Group functions and grouping data - Date arithmetic and date functions |
| Topic 7: Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types - Using data dictionary views |
| Topic 8: Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations - Transaction management and control |
| Topic 9: Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Topic 10: Controlling User Access | 5% | - Granting privileges on tables - System vs object privileges - Roles creation and privilege assignment |
| Topic 11: Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
Oracle Database 23ai SQL Associate Sample Questions:
What is the primary purpose of granting privileges in Oracle Database?
- A. To create new tables and indexes
- B. To define the structure of database tables
- C. To control user access to database objects and operations
- D. To increase query performance
Correct Answer: C 🗳️
Which clause is used to allow a user to grant a privilege to others?
- A. WITH ADMIN OPTION
- B. WITH SHARE OPTION
- C. WITH GRANT OPTION
- D. WITH SELECT OPTION
Correct Answer: C 🗳️
What does the following query return?
SELECT department_id FROM departments
INTERSECT
SELECT department_id FROM employees;
- A. Department IDs that exist in both the departments and employees tables
- B. All department IDs from the employees table
- C. Department IDs that exist only in the employees table
- D. All department IDs from the departments table
Correct Answer: A 🗳️
What is the result of the following SQL query?
SELECT COALESCE(NULL, 100, 200) AS result FROM dual;
- A. NULL
- B. 300
- C. 200
- D. 100
Correct Answer: D 🗳️
What will the following query do?
DELETE FROM employees
WHERE department_id = 20;
- A. Delete all rows in the employees table
- B. Delete all rows where department_id is 20
- C. Raise an error because DELETE cannot use a WHERE clause
- D. Delete the department_id column in the employees table
Correct Answer: B 🗳️
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