......... is a primary key of one file that also appears in another fi – McqOptions

MCQOPTIONS

1.	......... is a primary key of one file that also appears in another file.
A.	Physical key
B.	Primary key
C.	Foreign key
D.	Logical key
E.	None of these
Answer» D. Logical key

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 ?