Class-
10th
Subject
: Information Technology (402)
Book
: Domestic Data Entry Operator
UNIT-3
RELATIONAL DATABASE MANAGEMENT SYSTEMS (BASIC)
Revision
Test -2
1) This
unique field is called the _________________. It is a unique value that identifies a row in a
table.
2) When
primary key constraint is applied on one or more columns then it is known as ________________
Key.
3) A ______________ is
a column or group of columns in a relational database table that provides a
link between data in two tables.
4) A __________ is an organized collection of
data.
5) A ________________ is a software package that
can be used for creating and managing databases.
6) A ____________ is a database
management system that is based on the relational model.
7) Three popular DBMS software are
________, ________, & _______.
8) Field properties can be set in both
the ________ and _________ .
9) Composite Key is a combination of ________
columns.
10) A
___________ is a set of data elements (values) that is organized using a model
of vertical columns(which are identified by their name) and horizontal rows
11) A table is a set of data elements
that is organized using a model of vertical ___________ and horizontal
____________.
12) A _________ is a set of data values of a
particular type, one for each row of the table.
13) A ___________ represents a single, data item
in a table.
14) _____________ are used to identify which type
of data we are going to store in the database.
15) There are ________ ways to create a table.
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