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Oracle 1Z0-171 Exam Syllabus Topics:

SectionObjectives
Topic 1: Relational Database Concepts- Database fundamentals and relational model
  • 1. Tables, rows, columns, and keys
    • 2. Entity relationships and normalization basics
      Topic 2: Data Definition Language (DDL)- Schema objects
      • 1. Tables and constraints
        • 2. Views and indexes
          Topic 3: Advanced SQL Features- Aggregations and grouping
          • 1. Aggregate functions
            • 2. GROUP BY and HAVING
              - Set operators and functions
              • 1. UNION, INTERSECT, MINUS
                • 2. Single-row and group functions
                  Topic 4: Data Manipulation Language (DML)- Insert, Update, Delete operations
                  • 1. Data integrity considerations
                    • 2. Transaction control (COMMIT, ROLLBACK)
                      Topic 5: Retrieving Data Using SQL- SELECT statements
                      • 1. Sorting results with ORDER BY
                        • 2. Column selection and expressions
                          • 3. Filtering with WHERE clause
                            - Joins and Subqueries
                            • 1. Inner and outer joins
                              • 2. Correlated and non-correlated subqueries

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                                Oracle Database 23ai SQL Associate Sample Questions (Q24-Q29):

                                NEW QUESTION # 24
                                What is the primary purpose of a primary key in a relational database?

                                Answer: B


                                NEW QUESTION # 25
                                What is the output of the following query?
                                SELECT CURRENT_DATE FROM dual;

                                Answer: D


                                NEW QUESTION # 26
                                What does the EXISTS operator check in a subquery?

                                Answer: C


                                NEW QUESTION # 27
                                What is a subquery in SQL?

                                Answer: B


                                NEW QUESTION # 28
                                What is the result of the following query?
                                SELECT employee_id
                                FROM employees
                                WHERE EXISTS (SELECT 1 FROM departments WHERE department_id = 10);

                                Answer: D


                                NEW QUESTION # 29
                                ......

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