1Z1-171考題套裝，最新1Z1-171考證

Fast2test為Oracle 1Z1-171 認證考試準備的培訓包括Oracle 1Z1-171認證考試的模擬測試題和當前的考試真題。在互聯網上你也可以看到幾個也提供相關的培訓的網站，但是你比較之後，你就會發現Fast2test的關於Oracle 1Z1-171 認證考試的培訓比較有針對性，不僅品質是最高的，而且內容是最全面的。

Oracle 1Z1-171 Exam Syllabus Topics:

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

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                                最新的 Oracle Database 1Z1-171 免費考試真題 (Q80-Q85):

                                問題 #80
                                What will the following query result in?
                                SELECT e.employee_id, e.manager_id
                                FROM employees e
                                WHERE e.manager_id IS NOT NULL;

                                答案：C


                                問題 #81
                                What does the following SQL query do?
                                SELECT * FROM employees WHERE salary > 5000 ORDER BY department_id;

                                答案：C


                                問題 #82
                                What is the primary purpose of a primary key in a relational database?

                                答案：A


                                問題 #83
                                Which of the following SET operators combines results from two queries and removes duplicates?

                                答案：D


                                問題 #84
                                Which of the following can be achieved using a correlated subquery?

                                答案：A


                                問題 #85
                                ......

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