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Oracle 1Z1-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Using SET Operators | 5% | - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations - Matching SELECT statements |
| Controlling User Access | 5% | - System vs object privileges - Roles creation and privilege assignment - Granting privileges on tables |
| Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - INSERT, UPDATE, DELETE operations - Transaction management and control |
| Relational Database Concepts | 5% | - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components - Relationship between database and SQL |
| DDL for Tables and Relationships | 15% | - TRUNCATE TABLE statement - Table structure, columns, data types - Temporary and external tables - Drop columns, set unused columns - CREATE TABLE statement - Constraints management - Views management |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage indexes - Create and manage sequences |
| Retrieving and Sorting Data | 15% | - Using SELECT statement and column aliases - Limiting rows and substitution variables - Arithmetic expressions and NULL values - Sorting query results - Operator precedence rules - DEFINE and VERIFY commands - Operators, literals, DISTINCT keyword |
| Data Dictionary and Time Zones | 5% | - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types |
| Using Functions | 25% | - ROUND, TRUNC, MOD functions - Restricting group results - Nested functions - Group functions and grouping data - Date arithmetic and date functions - NVL, NULLIF, COALESCE functions - Data type conversion: implicit and explicit - Character functions for string manipulation - TO_CHAR, TO_NUMBER, TO_DATE conversion functions |
| Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
Oracle Database 23ai SQL Associate Sample Questions:
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 permanently stored in the database.
D) It is stored in external files.
2. Which data dictionary view lists all indexes created by the current user?
A) ALL_INDEXES
B) USER_INDEXES
C) INDEX_LIST
D) DBA_INDEXES
3. What does the COMMIT statement do in SQL?
A) Discards all pending changes in the transaction
B) Begins a new transaction
C) Saves all pending changes to the database permanently
D) Rolls back changes to a previous state
4. What does the following query return?
SELECT employee_id
FROM employees
WHERE department_id IN (SELECT department_id FROM departments WHERE location_id = 1000);
A) Departments located in location ID 1000
B) Employees with no department
C) Employees working in location ID 1000
D) Employees with salaries greater than 1000
5. Which function is used to extract the year from a date in SQL?
A) EXTRACT(YEAR FROM date)
B) TO_YEAR(date)
C) YEAR(date)
D) GET_YEAR(date)
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: B | Question # 3 Answer: C | Question # 4 Answer: C | Question # 5 Answer: A |
Josephine 
Hyman 
Perry 
Adelaide 
Kim 
Marina 
Athena 
Kevin 
Moses 
Barlow 
Ida 
Henry 
Jonas 
Wendell 
