Oracle 1Z0-171 Exam | 1Z0-171 Updated Test Cram - Professional Offer of Latest 1Z0-171 Dumps Free

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Oracle 1Z0-171 Exam Syllabus Topics:

Section	Objectives
Using SQL Functions	- Use conversion functions - Use character, number, and date functions in SELECT statements
Controlling User Access	- Create and manage roles - Differentiate system privileges from object privileges - Grant and revoke privileges
Using Set Operators	- Use UNION, UNION ALL, INTERSECT, and MINUS operators
Using Subqueries	- Use multiple-row subqueries - Use single-row subqueries - Use correlated subqueries
Using DML Statements	- Update rows in a table - Delete rows from a table - Insert rows into a table - Use the MERGE statement - Control transactions
Using DDL Statements	- Create and manage views - Create and manage constraints - Create and manage indexes - Create and manage sequences - Create and manage tables
Using Joins	- Use equijoins and non-equijoins - Use outer joins (LEFT, RIGHT, FULL) - Use cross joins - Use self-joins
Using SELECT Statements	- Use the WHERE clause to restrict rows - Execute a basic SELECT statement - Use the FETCH clause to limit rows returned - Use the ORDER BY clause to sort rows

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Oracle Database 23ai SQL Associate Sample Questions (Q88-Q93):

NEW QUESTION # 88
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;

A. Combines all employee IDs, salaries, and bonuses, including duplicates
B. Returns only employees with duplicate employee IDs in both tables
C. Returns only the employees with salaries and bonuses
D. Combines the salaries and bonuses for employees, removing duplicates

Answer: A

NEW QUESTION # 89
What will the following SQL query do?
UPDATE employees
SET salary = salary * 1.1
WHERE department_id = 10;

A. Set the salary to 1.1 for employees in department 10
B. Increase the salary of employees in department 10 by 10%
C. Decrease the salary of employees in department 10 by 10%
D. Increase the salary of all employees by 10%

Answer: B

NEW QUESTION # 90
Which of the following statements is true about constraints in Oracle Database?

A. Constraints are automatically dropped when rows are deleted.
B. Constraints can only be added when creating a table.
C. Constraints cannot reference other tables.
D. Constraints can be added or modified using the ALTER TABLE statement.

Answer: D

NEW QUESTION # 91
How are NULL values treated in relational databases?

A. NULL values are treated as zero.
B. NULL values are treated as empty strings.
C. NULL values are not allowed in relational databases.
D. NULL values represent missing or unknown data.

Answer: D

NEW QUESTION # 92
What is the result of the following SQL query?
SELECT COALESCE(NULL, 100, 200) AS result FROM dual;

A. 0
B. 1
C. 2
D. NULL

Answer: C

NEW QUESTION # 93
......

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