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Oracle 1Z1-171 Exam Syllabus Topics:

Section	Objectives
Topic 1: Using SQL Functions	- Use character, number, and date functions in SELECT statements - Use conversion functions
Topic 2: Using DDL Statements	- Create and manage indexes - Create and manage views - Create and manage tables - Create and manage sequences - Create and manage constraints
Topic 3: Using DML Statements	- Use the MERGE statement - Control transactions - Insert rows into a table - Delete rows from a table - Update rows in a table
Topic 4: Using Set Operators	- Use UNION, UNION ALL, INTERSECT, and MINUS operators
Topic 5: Using Joins	- Use self-joins - Use outer joins (LEFT, RIGHT, FULL) - Use cross joins - Use equijoins and non-equijoins
Topic 6: Using Subqueries	- Use correlated subqueries - Use multiple-row subqueries - Use single-row subqueries
Topic 7: Controlling User Access	- Create and manage roles - Differentiate system privileges from object privileges - Grant and revoke privileges
Topic 8: Using SELECT Statements	- Execute a basic SELECT statement - Use the ORDER BY clause to sort rows - Use the WHERE clause to restrict rows - Use the FETCH clause to limit rows returned

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Oracle Database 23ai SQL Associate Sample Questions (Q54-Q59):

NEW QUESTION # 54
How are NULL values treated in relational databases?

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

Answer: B

NEW QUESTION # 55
Which function is used to extract the year from a date in SQL?

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

Answer: A

NEW QUESTION # 56
What happens when the maximum value of a sequence is reached?

A. An error is raised, and the sequence must be recreated.
B. The sequence starts decrementing values.
C. The sequence resets to the starting value if the CYCLE option is specified.
D. The sequence stops generating values.

Answer: C

NEW QUESTION # 57
What does the following SQL statement do?
ALTER TABLE employees DROP COLUMN salary;

A. Removes duplicate rows from the employees table
B. Drops the salary column from the employees table
C. Deletes the employees table
D. Sets the salary column to NULL for all rows

Answer: B

NEW QUESTION # 58
Which command revokes a user's privilege to update a table?

A. REMOVE UPDATE ON table_name FROM user_name;
B. REVOKE UPDATE ON table_name FROM user_name;
C. DELETE UPDATE ON table_name FROM user_name;
D. DENY UPDATE ON table_name FROM user_name;

Answer: B

NEW QUESTION # 59
......

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