Pass your actual test at first attempt with Oracle 1Z0-171 training material
Last Updated: Oct 10, 2026
No. of Questions: 111 Questions & Answers with Testing Engine
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| Section | Weight | Objectives |
|---|---|---|
| Relational Database Concepts | 5% | - SQL SELECT clauses and ERD components - Relational database theoretical and physical aspects - Relationship between database and SQL |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage synonyms - Create and manage sequences - Create and manage indexes |
| Using Subqueries | 5% | - Single-row and multi-row subqueries - Correlated subqueries for update and delete |
| Displaying Data from Multiple Tables | 10% | - Cartesian products - Different types of joins: equijoin, non-equijoin, outer join, self-join |
| Managing Tables with DML | 5% | - INSERT, UPDATE, DELETE operations - Transaction management and control - Multi-table INSERT and MERGE statements |
| Data Dictionary and Time Zones | 5% | - INTERVAL data types - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views |
| Using SET Operators | 5% | - Matching SELECT statements - UNION, UNION ALL, INTERSECT, MINUS operators - Using ORDER BY with set operations |
| DDL for Tables and Relationships | 15% | - CREATE TABLE statement - Drop columns, set unused columns - Views management - TRUNCATE TABLE statement - Table structure, columns, data types - Temporary and external tables - Constraints management |
| Controlling User Access | 5% | - System vs object privileges - Granting privileges on tables - Roles creation and privilege assignment |
| Retrieving and Sorting Data | 15% | - Limiting rows and substitution variables - Operator precedence rules - Sorting query results - Using SELECT statement and column aliases - Operators, literals, DISTINCT keyword - Arithmetic expressions and NULL values - DEFINE and VERIFY commands |
| Using Functions | 25% | - Character functions for string manipulation - Date arithmetic and date functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Data type conversion: implicit and explicit - NVL, NULLIF, COALESCE functions - ROUND, TRUNC, MOD functions - Nested functions - Group functions and grouping data - Restricting group results |
Which of the following statements creates an ascending sequence starting at 100 and incrementing by 10?
Correct Answer: C 🗳️
What does the following query return?
SELECT ROUND(123.456, 1) AS rounded_value FROM dual;
Correct Answer: B 🗳️
What is a role in Oracle Database?
Correct Answer: C 🗳️
Which SQL function converts a string representation of a date into a date data type?
Correct Answer: A 🗳️
How does SQL handle NULL values in arithmetic expressions?
Correct Answer: D 🗳️
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