Oracle Database 23ai SQL Associate : 1Z0-171

1Z0-171 pass collection

Exam Code: 1Z0-171

Exam Name: Oracle Database 23ai SQL Associate

Updated: Aug 16, 2026

Q & A: 111 Questions and Answers

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Oracle 1Z0-171 Exam Syllabus Topics:

SectionObjectives
Data Definition Language (DDL)- Schema objects
  • 1. Tables and constraints
    • 2. Views and indexes
      Retrieving Data Using SQL- Joins and Subqueries
      • 1. Inner and outer joins
        • 2. Correlated and non-correlated subqueries
          - SELECT statements
          • 1. Filtering with WHERE clause
            • 2. Sorting results with ORDER BY
              • 3. Column selection and expressions
                Advanced SQL Features- Aggregations and grouping
                • 1. Aggregate functions
                  • 2. GROUP BY and HAVING
                    - Set operators and functions
                    • 1. Single-row and group functions
                      • 2. UNION, INTERSECT, MINUS
                        Data Manipulation Language (DML)- Insert, Update, Delete operations
                        • 1. Transaction control (COMMIT, ROLLBACK)
                          • 2. Data integrity considerations
                            Relational Database Concepts- Database fundamentals and relational model
                            • 1. Tables, rows, columns, and keys
                              • 2. Entity relationships and normalization basics

                                Oracle Database 23ai SQL Associate Sample Questions:

                                1. Which SQL clause is used to specify the source table in a query?

                                A) FROM
                                B) SELECT
                                C) WHERE
                                D) GROUP BY


                                2. What will the following query result in?
                                SELECT e.employee_id, e.manager_id
                                FROM employees e
                                WHERE e.manager_id IS NOT NULL;

                                A) Employees and their managers' IDs
                                B) All employees and their IDs
                                C) Employees who have managers
                                D) Employees who do not have managers


                                3. How does SQL handle NULL values in arithmetic expressions?

                                A) Produces a NULL result
                                B) Produces an error
                                C) Treats them as the largest possible number
                                D) Treats them as zero


                                4. Which INTERVAL data type would you use to store a period of time in years and months?

                                A) INTERVAL YEAR TO MONTH
                                B) INTERVAL DAY TO SECOND
                                C) INTERVAL MONTH TO DAY
                                D) INTERVAL MINUTE TO HOUR


                                5. Which command is used to add a new column to an existing table?

                                A) MODIFY COLUMN
                                B) ALTER COLUMN
                                C) ADD COLUMN
                                D) ALTER TABLE


                                Solutions:

                                Question # 1
                                Answer: A
                                Question # 2
                                Answer: C
                                Question # 3
                                Answer: A
                                Question # 4
                                Answer: A
                                Question # 5
                                Answer: D

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