All Objectives for the Latest 1Z1-171 Valid Test Fee

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Oracle 1Z1-171 Exam Syllabus Topics:

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

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

                                NEW QUESTION # 84
                                What type of join does the following query perform?
                                SELECT *
                                FROM employees e, departments d
                                WHERE e.department_id = d.department_id;

                                Answer: A


                                NEW QUESTION # 85
                                Which SQL keyword is used to define a substitution variable in a SQL statement?

                                Answer: D


                                NEW QUESTION # 86
                                What does the following SQL statement do?
                                ALTER TABLE employees DROP COLUMN salary;

                                Answer: B


                                NEW QUESTION # 87
                                What is the primary purpose of an index in SQL?

                                Answer: B


                                NEW QUESTION # 88
                                Which of the following statements is true about constraints in Oracle Database?

                                Answer: D


                                NEW QUESTION # 89
                                ......

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