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Which of the following modifications may not succeed?

Changing a column data type from char to date
Changing a column data type from numeric to char
Both of the above actions should succeed.
Neither of the above actions will succeed.

Correct Answer: Changing a column data type from char to date

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More Questions from Database Redesign

What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0?
Database redesign is not terribly difficult if the:
The data model produced from the reverse engineering process does not include intersection table data.
The NOT EXISTS keyword will be true if any row in the subquery meets the condition.
It is not easy to build a database correctly the first time.
Adding null columns to a table is straightforward.
Some organizations take the stand that no application should ever employ the true name of a table.
Information systems and organizations do not just influence each other; they create each other.
Reverse engineering is the process of reading a database schema and producing a data model from that schema.
Typically, there should be at least two different copies of the database schema used in the redesign process.

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