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Oracle 1Z0-171 Exam Syllabus Topics:

SectionObjectives
Topic 1: Relational Database Concepts- Database fundamentals and relational model
  • 1. Entity relationships and normalization basics
    • 2. Tables, rows, columns, and keys
      Topic 2: Data Manipulation Language (DML)- Insert, Update, Delete operations
      • 1. Transaction control (COMMIT, ROLLBACK)
        • 2. Data integrity considerations
          Topic 3: 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. Correlated and non-correlated subqueries
                  • 2. Inner and outer joins
                    Topic 4: Advanced SQL Features- Aggregations and grouping
                    • 1. Aggregate functions
                      • 2. GROUP BY and HAVING
                        - Set operators and functions
                        • 1. Single-row and group functions
                          • 2. UNION, INTERSECT, MINUS
                            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 (Q31-Q36):

                                NEW QUESTION # 31
                                What happens when a unique index is created on a table column?

                                Answer: B


                                NEW QUESTION # 32
                                How are NULL values treated in relational databases?

                                Answer: A


                                NEW QUESTION # 33
                                What does the UNION ALL operation do when selecting matching columns from different tables?
                                SELECT employee_id, salary FROM employees
                                UNION ALL
                                SELECT employee_id, bonus FROM bonuses;

                                Answer: D


                                NEW QUESTION # 34
                                Which SQL clause can be used in Oracle to limit the number of rows returned?

                                Answer: C


                                NEW QUESTION # 35
                                What is the purpose of a correlated subquery?

                                Answer: A


                                NEW QUESTION # 36
                                ......

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