Steps to Reproduce:

1. Open a calc application.
2. Select an Access database.
3. Select one of the table, it displays all the data present in that table at 
the right pane.
4.Insert one record into the table by just entering the data into the 
corresponding columns.
5.For the column whose datatype is created as "Number", enter alphabets in that.
Eg: For the Salary column whose datatype is "Number" enter "three" instead 
of "3" and go to the next field or if it is the last field save the record.

Expected Result: When the record is saved with wrong dataytype entered; it 
should validate the field and prompt the user with a message saying that "Only 
numerical characters are to be entered".

Actual Result: It is seen that the field value where alphabet is entered , the 
value is directly converted to "0", that is "three" is being replaced with "0".