Oracle 1Z1-171 - Oracle Database 23ai SQL Associate
- Exam Code: 1Z1-171
- Exam Name: Oracle Database 23ai SQL Associate
- Updated: Sep 06, 2026
- Q & A: 111 Questions and Answers
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| Section | Weight | Objectives |
|---|---|---|
| Retrieving and Sorting Data | 15% | - Arithmetic expressions and NULL values - Operators, literals, DISTINCT keyword - Limiting rows and substitution variables - Sorting query results - Operator precedence rules - DEFINE and VERIFY commands - Using SELECT statement and column aliases |
| Using SET Operators | 5% | - Matching SELECT statements - Using ORDER BY with set operations - UNION, UNION ALL, INTERSECT, MINUS operators |
| Displaying Data from Multiple Tables | 10% | - Different types of joins: equijoin, non-equijoin, outer join, self-join - Cartesian products |
| DDL for Tables and Relationships | 15% | - Constraints management - Drop columns, set unused columns - Table structure, columns, data types - Views management - TRUNCATE TABLE statement - Temporary and external tables - CREATE TABLE statement |
| Using Subqueries | 5% | - Correlated subqueries for update and delete - Single-row and multi-row subqueries |
| Managing Tables with DML | 5% | - INSERT, UPDATE, DELETE operations - Transaction management and control - Multi-table INSERT and MERGE statements |
| Controlling User Access | 5% | - System vs object privileges - Granting privileges on tables - Roles creation and privilege assignment |
| Using Functions | 25% | - Group functions and grouping data - ROUND, TRUNC, MOD functions - TO_CHAR, TO_NUMBER, TO_DATE conversion functions - Date arithmetic and date functions - Restricting group results - Character functions for string manipulation - Data type conversion: implicit and explicit - NVL, NULLIF, COALESCE functions - Nested functions |
| 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 indexes - Create and manage synonyms - Create and manage sequences |
| Data Dictionary and Time Zones | 5% | - CURRENT_DATE, CURRENT_TIMESTAMP, LOCALTIMESTAMP - Using data dictionary views - INTERVAL data types |
Question 1
What happens if a privilege is revoked from a user who has granted the same privilege to others?
A. The privilege is retained by the other users.
B. The privilege is transferred to another user.
C. The privilege cannot be revoked in this scenario.
D. The privilege is revoked from all other users.
Question 2
What is a SELF JOIN in SQL?
A. A join of a table with itself
B. A join that does not require a WHERE clause
C. A join between tables with identical structures
D. A join used for Cartesian products
Question 3
What does the INTERSECT operator do in SQL?
A. Combines all rows from two queries without any conditions
B. Returns rows from the first query that are not present in the second query
C. Combines rows from two queries and includes all duplicates
D. Returns rows that are present in both queries
Question 4
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
Question 5
What is the relationship between SQL and a relational database?
A. SQL is a scripting language used for file manipulation.
B. SQL is used to create flat file databases.
C. SQL is a file system used to store relational database data.
D. SQL is a standard query language used to interact with relational databases
Solutions:
| Question 1 Answer: D | Question 2 Answer: A | Question 3 Answer: D | Question 4 Answer: D | Question 5 Answer: D |
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