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Oracle 1Z1-171 Exam Syllabus Topics:

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

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Oracle Database 23ai SQL Associate Sample Questions (Q10-Q15):

NEW QUESTION # 10
What will the following query result in?
SELECT e.employee_id, e.manager_id
FROM employees e
WHERE e.manager_id IS NOT NULL;

A. Employees who have managers
B. All employees and their IDs
C. Employees and their managers' IDs
D. Employees who do not have managers

Answer: A

NEW QUESTION # 11
What is the difference between UNION and UNION ALL?

A. UNION includes all rows, while UNION ALL removes duplicates.
B. UNION removes duplicates, while UNION ALL includes all rows, including duplicates.
C. UNION combines columns, while UNION ALL combines rows.
D. UNION works with subqueries, while UNION ALL does not.

Answer: B

NEW QUESTION # 12
Which function is used to extract the year from a date in SQL?

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

Answer: D

NEW QUESTION # 13
What is a SELF JOIN in SQL?

A. A join that does not require a WHERE clause
B. A join used for Cartesian products
C. A join between tables with identical structures
D. A join of a table with itself

Answer: D

NEW QUESTION # 14
Which command creates a new role in Oracle Database?

A. CREATE NEW ROLE role_name;
B. CREATE ROLE role_name;
C. ADD ROLE role_name;

Answer: B

NEW QUESTION # 15
......

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