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Oracle 1Z0-171 Exam Syllabus Topics:

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

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                                Oracle Database 23ai SQL Associate Sample Questions (Q82-Q87):

                                NEW QUESTION # 82
                                What is the result of the following SQL query?
                                SELECT COALESCE(NULL, 100, 200) AS result FROM dual;

                                Answer: B


                                NEW QUESTION # 83
                                Which SQL function calculates the number of months between two dates?
                                Response:

                                Answer: B


                                NEW QUESTION # 84
                                What does the following SQL statement do?
                                ALTER TABLE employees DROP COLUMN salary;

                                Answer: B


                                NEW QUESTION # 85
                                The column data type is converted to a primary key.

                                Answer: B


                                NEW QUESTION # 86
                                How are NULL values treated in relational databases?

                                Answer: D


                                NEW QUESTION # 87
                                ......

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