DATABASE REDESIGN QUIZ

True

False

False

True

a database design task that never occurs.

a rare database design task, but does occur.

a common database design task.

is impossible to do, so a new database must be constructed and the data moved into it.

True

False

True

False

Changing a column data type from numeric to char

Neither of the above actions will succeed

Both of the above actions should succeed

Changing a column data type from char to date

False

True

True

False

both of these two conditions are met.

any row in the subquery meets the condition only.

all rows in the subquery fail the condition only.

neither of these two conditions is met.

False

True