Try and practice the latest Oracle : 1Z0-171 real questions & answers
Last Updated: Sep 30, 2026
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Oracle 1Z0-171 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Using SET Operators | 5% | - Matching SELECT statements - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators |
| Retrieving and Sorting Data | 15% | - Limiting rows and substitution variables - Arithmetic expressions and NULL values - Operators, literals, DISTINCT keyword - Using SELECT statement and column aliases - Operator precedence rules - DEFINE and VERIFY commands - Sorting query results |
| Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| Relational Database Concepts | 5% | - Relationship between database and SQL - Relational database theoretical and physical aspects - SQL SELECT clauses and ERD components |
| Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Controlling User Access | 5% | - Roles creation and privilege assignment - System vs object privileges - Granting privileges on tables |
| Using Functions | 25% | - Data type conversion: implicit and explicit - NVL, NULLIF, COALESCE functions - ROUND, TRUNC, MOD functions - Nested functions - Character functions for string manipulation - Restricting group results - Group functions and grouping data - Date arithmetic and date functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions |
| Data Dictionary and Time Zones | 5% | - Using data dictionary views - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - INTERVAL data types |
| Managing Indexes, Synonyms, Sequences | 5% | - Create and manage indexes - Create and manage sequences - Create and manage synonyms |
| Managing Tables with DML | 5% | - Multi-table INSERT and MERGE statements - Transaction management and control - INSERT, UPDATE, DELETE operations |
| DDL for Tables and Relationships | 15% | - CREATE TABLE statement - Drop columns, set unused columns - Table structure, columns, data types - Views management - Constraints management - Temporary and external tables - TRUNCATE TABLE statement |
Oracle Database 23ai SQL Associate Sample Questions:
Which clause is used to ensure that only specific rows are deleted in a DELETE statement?
- A. SET
- B. HAVING
- C. FROM
- D. WHERE
Correct Answer: D 🗳️
What does the EXISTS operator check in a subquery?
- A. If the subquery contains only unique values
- B. If the subquery references the outer query
- C. If the subquery returns any rows
- D. If the subquery returns a specific number of rows
Correct Answer: C 🗳️
Which SQL keyword is used to define a substitution variable in a SQL statement?
- A. SET
- B. SUBSTITUTION
- C. VAR
- D. DEFINE
Correct Answer: D 🗳️
Which function is used to convert a string to uppercase in SQL?
- A. CASE_UPPER
- B. CONVERT_UPPER
- C. TO_UPPERCASE
- D. UPPER
Correct Answer: D 🗳️
What is a role in Oracle Database?
- A. A predefined SQL statement stored in the database
- B. A set of privileges that can be granted to users or other roles
- C. A user-defined function
- D. A database object used to enforce constraints
Correct Answer: B 🗳️
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