單項(xiàng)選擇題

Examine the data from the ORDERS and CUSTOMERS tables.

Evaluate the SQL statement:

What is the result when the query is executed?（）

A.
B.
C.
D. The query fails because the subquery returns more than one row.
E. The query fails because the outer query and the inner query are using different tables.

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單項(xiàng)選擇題

Which view should a user query to display the columns associated with the constraints on a table owned by the user?（）

A. USER_CONSTRAINTS
B. USER_OBJECTS
C. ALL_CONSTRAINTS
D. USER_CONS_COLUMNS
E. USER_COLUMNS

單項(xiàng)選擇題

The user Alice wants to grant all users query privileges on her DEPT table. Which SQL statement accomplishes this?（）

A. GRANT select ON dept TO ALL_ USER;
B. GRANT select ON dept TO ALL;
C. GRANT QUERY ON dept TO ALL_USERS
D. GRANT select ON dept TO PUBLIC;

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Examine the data from the ORDERS and CUSTOMERS tables. Evaluate the SQL statement: What is the result when the query is executed?（）

你可能感興趣的試題

Which view should a user query to display the columns associated with the constraints on a table owned by the user?（）

The user Alice wants to grant all users query privileges on her DEPT table. Which SQL statement accomplishes this?（）

Examine the data from the ORDERS and CUSTOMERS tables.

Evaluate the SQL statement:

What is the result when the query is executed?（）