Exam Name: Oracle Database 23ai SQL Associate
Certification Provider: Oracle
Corresponding Certification: Oracle Database
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Check Updated on: Aug 07, 2026
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Oracle 1Z0-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Topic 2: Relational Database Concepts | 5% | - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects - Relationship between database and SQL |
| Topic 3: Using Functions | 25% | - Date arithmetic and date functions - Data type conversion: implicit and explicit - NVL, NULLIF, COALESCE functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Restricting group results - Nested functions - ROUND, TRUNC, MOD functions - Character functions for string manipulation - Group functions and grouping data |
| Topic 4: Managing Indexes, Synonyms, Sequences | 5% | - Create and manage sequences - Create and manage synonyms - Create and manage indexes |
| Topic 5: Data Dictionary and Time Zones | 5% | - INTERVAL data types - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP |
| Topic 6: Controlling User Access | 5% | - System vs object privileges - Roles creation and privilege assignment - Granting privileges on tables |
| Topic 7: Retrieving and Sorting Data | 15% | - Limiting rows and substitution variables - Operators, literals, DISTINCT keyword - Arithmetic expressions and NULL values - Using SELECT statement and column aliases - Operator precedence rules - Sorting query results - DEFINE and VERIFY commands |
| Topic 8: Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Topic 9: Managing Tables with DML | 5% | - Transaction management and control - INSERT, UPDATE, DELETE operations - Multi-table INSERT and MERGE statements |
| Topic 10: DDL for Tables and Relationships | 15% | - Temporary and external tables - CREATE TABLE statement - Table structure, columns, data types - Views management - Constraints management - Drop columns, set unused columns - TRUNCATE TABLE statement |
| Topic 11: Using SET Operators | 5% | - Using ORDER BY with set operations - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators |
Oracle Database 23ai SQL Associate Sample Questions:
1. What is the purpose of a correlated subquery?
A) A subquery that depends on the result of another subquery
B) A subquery that can be used only with aggregate functions
C) A subquery that combines data from multiple tables
D) A subquery that references columns from the outer query
2. How are NULL values treated in relational databases?
A) NULL values are treated as zero.
B) NULL values are not allowed in relational databases.
C) NULL values are treated as empty strings.
D) NULL values represent missing or unknown data.
3. Which of the following data dictionary views provides information about constraints on tables?
A) USER_CONSTRAINTS
B) ALL_CONSTRAINTS
C) DBA_CONSTRAINTS
D) All of the above
4. Which SQLPlus command displays defined substitution variable values?
A) LIST
B) DEFINE
C) SHOW
D) VERIFY
5. What will the following query do?
SELECT employee_id, salary
FROM employees
WHERE salary > (SELECT AVG(salary) FROM employees);
A) Return all employees and their salaries
B) Return employees with a salary below the average salary
C) Return employees with a salary equal to the average salary
D) Return employees with a salary above the average salary
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: D | Question # 3 Answer: D | Question # 4 Answer: B | Question # 5 Answer: D |
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