Valid Exam 1Z1-171 Braindumps - 1Z1-171 Exams Training

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Oracle 1Z1-171 Exam Syllabus Topics:

Section	Objectives
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. Column selection and expressions 3. Sorting results with ORDER BY
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. Aggregate functions 2. GROUP BY and HAVING
Relational Database Concepts	- Database fundamentals and relational model 1. Entity relationships and normalization basics 2. Tables, rows, columns, and keys
Data Manipulation Language (DML)	- Insert, Update, Delete operations 1. Transaction control (COMMIT, ROLLBACK) 2. Data integrity considerations

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1Z1-171 Exams Training | Online 1Z1-171 Training Materials

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Oracle Database 23ai SQL Associate Sample Questions (Q92-Q97):

NEW QUESTION # 92
Which of the following can be achieved using a correlated subquery?

A. Joining two tables without a common column
B. Inserting data into a table
C. Comparing each employee's salary to the average salary of their department
D. Retrieving duplicate records from a single table

Answer: C

NEW QUESTION # 93
Which command is used to add a new column to an existing table?

A. ADD COLUMN
B. ALTER COLUMN
C. MODIFY COLUMN
D. ALTER TABLE

Answer: D

NEW QUESTION # 94
What is the result of the following query?
SELECT employee_id
FROM employees
WHERE EXISTS (SELECT 1 FROM departments WHERE department_id = 10);

A. Employees with salaries greater than 10
B. All employee IDs
C. Employee IDs from department 10
D. Employee IDs from departments with no employees

Answer: B

NEW QUESTION # 95
Which function is used to extract the year from a date in SQL?

A. GET_YEAR(date)
B. TO_YEAR(date)
C. EXTRACT(YEAR FROM date)
D. YEAR(date)

Answer: C

NEW QUESTION # 96
Which statement can be used to undo changes made in a transaction?

A. MERGE
B. COMMIT
C. ROLLBACK
D. SAVEPOINT

Answer: C

NEW QUESTION # 97
......

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