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Oracle 1Z0-171 Exam Syllabus Topics:

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

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                                Oracle Database 23ai SQL Associate Sample Questions (Q84-Q89):

                                NEW QUESTION # 84
                                Which of the following is true about foreign key constraints in SQL?

                                Answer: C


                                NEW QUESTION # 85
                                What will the following query do?
                                DELETE FROM employees
                                WHERE department_id = 20;

                                Answer: B


                                NEW QUESTION # 86
                                Which SQL statement is used to insert a new row into a table?

                                Answer: B


                                NEW QUESTION # 87
                                What is the primary purpose of a primary key in a relational database?

                                Answer: A


                                NEW QUESTION # 88
                                What will the following query result in?
                                SELECT e.employee_id, e.manager_id
                                FROM employees e
                                WHERE e.manager_id IS NOT NULL;

                                Answer: D


                                NEW QUESTION # 89
                                ......

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