Which task can be performed by using a single Data Manipulation Language (DML) statement?

Which task can be performed by using a single Data Manipulation Language (DML) statement?

Question:

Which task can be performed by using a single Data Manipulation Language (DML) statement?

Options:

adding a column constraint when inserting a row into a table

adding a column with a default value when inserting a row into a table

removing all data only from one single column on which a unique constraint is defined

removing all data only from one single column on which a primary key constraint is defined

Correct Answer

The Correct Answer for this Question is

removing all data only from one single column on which a unique constraint is defined

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