Oracle 1Z0-171 : Oracle Database 23ai SQL Associate

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Oracle Database 23ai SQL Associate Sample Questions:

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;

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

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

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.

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: