what is meta data?
Small amount of data
Data about data
Redundant data
Collection of data
Which of the following have the information about data?
Data
Metadata
Entity
Relations
Which of the following feature provides the ability to modify a schema definition at one level without affecting the schema definition at the next higher level?
Data Abstraction
Data manipulation
Data independency
Data structure
What is the main purpose of DML language?
Define Schema
Define internal level
Access data
All of these
What is data redundancy?
Duplication of data
Smallest unit of stored data
Sharing of data
Which database language enables users to access or manipulate data organized by the appropriate data model?
DML
DDL
Query language
Data base
Which of the following include schema definition?
DCL
DQL
Which of the following is used for storing DDL Statement or database schema?
Data Dictionary
Tables
Both a and b
None of these
Which dbms represents the db as a collection of relations and is assigned with a unique name?
Relational DBMS
Navigational DBMS
SQL DBMS
Application DBMS
Which of the following is correct about cardinality?
Number of rows or tuples in a relation
Columns of a relation
Rows of a relation
Attributes of a relation
