During the data import process in Oracle,if some of the spreadsheet cells in a column of the source data are empty,________.
A)you must put some data in them before importing
B)you must not specify this column as a foreign key later
C)you must ensure the data type for this column is numeric
D)you must check the "Nullable" box in the wizard

Question

Quizplus · Accepted Answer

If some cells in a column of the source data are empty, it means that the column allows null values. In Oracle, to allow a column to accept null values, the "Nullable" box must be checked in the data import wizard. Therefore, D is the correct choice.

During the Data Import Process in Oracle,if Some of the Spreadsheet