Which of the following will not eliminate the ambiguities of a null va – McqOptions

MCQOPTIONS

1.	Which of the following will not eliminate the ambiguities of a null value ?
A.	Define the attribute as required
B.	Define subtypes
C.	Define each attribute as having an initial value that is recognised as blank
D.	Define super types
E.	None of the above
Answer» E. None of the above

Discussion

No Comment Found

Related MCQs

Which type of database, organised the data in the form of tree with nodes ?
Which of the following types of table constraints will prevent the entry of duplicate rows ?
DBMS ic comprised of tables that made up of rows called ...... and columns called ............
Which out of the following is not a DBMS software ?
The primary key must be a (n) ...... field.
Which of the following objects is/are contained in database ?
A ............ is a collection of data that is stored electronically as a series of records in a table.
In files, there is a key associated with each record which is used to differentiate among different records, For every file, there is atleast one set of keys that is unique. Such a key is called
In which the database can be restored up to the last consistent state after the system failure ?
Which of the following places the common data elements in order from smallest to largest ?