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Oracle 1Z0-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Using SQL Functions | - Use character, number, and date functions in SELECT statements - Use conversion functions |
| Using Joins | - Use cross joins - Use outer joins (LEFT, RIGHT, FULL) - Use equijoins and non-equijoins - Use self-joins |
| Using DML Statements | - Update rows in a table - Use the MERGE statement - Insert rows into a table - Control transactions - Delete rows from a table |
| Using Subqueries | - Use single-row subqueries - Use multiple-row subqueries - Use correlated subqueries |
| Controlling User Access | - Create and manage roles - Grant and revoke privileges - Differentiate system privileges from object privileges |
| Using DDL Statements | - Create and manage indexes - Create and manage tables - Create and manage sequences - Create and manage constraints - Create and manage views |
| Using SELECT Statements | - Use the ORDER BY clause to sort rows - Use the WHERE clause to restrict rows - Use the FETCH clause to limit rows returned - Execute a basic SELECT statement |
| Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
Oracle Database 23ai SQL Associate Sample Questions:
Question #1
Which command revokes a user's privilege to update a table?
A. DENY UPDATE ON table_name FROM user_name;
B. REMOVE UPDATE ON table_name FROM user_name;
C. DELETE UPDATE ON table_name FROM user_name;
D. REVOKE UPDATE ON table_name FROM user_name;
Question #2
Which SQL JOIN keyword retrieves all rows from both tables, including those without matches?
A. CROSS
B. RIGHT
C. FULL OUTER JOIN
D. LEFT
Question #3
What does the COMMIT statement do in SQL?
A. Discards all pending changes in the transaction
B. Rolls back changes to a previous state
C. Saves all pending changes to the database permanently
D. Begins a new transaction
Question #4
How is the LOCALTIMESTAMP function different from CURRENT_TIMESTAMP?
A. Both functions are identical in output.
B. LOCALTIMESTAMP does not include fractional seconds, while CURRENT_TIMESTAMP does.
C. LOCALTIMESTAMP omits time zone information, while CURRENT_TIMESTAMP includes it.
D. LOCALTIMESTAMP returns only the date, while CURRENT_TIMESTAMP returns the date and time.
Question #5
Which of the following is true about foreign key constraints in SQL?
A. They define a relationship between two tables.
B. They enforce the uniqueness of values in a column.
C. They ensure that a column only contains NULL values.
Solutions:
| Question #1 Correct Answer: D | Question #2 Correct Answer: C | Question #3 Correct Answer: C | Question #4 Correct Answer: C | Question #5 Correct Answer: A |
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