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WorksheetsDatabase Concepts
Total questions: 15
Worksheet time: 8mins
The number of rows in a relation
degree
tuple
cardinality
domain
SQL stands for
(a)
Data about data is ______________
Data Description
Metadata
Data redundancy
Data inconsistency
Repetition of data is called data ..............
dependance
redundancy
inconsistency
isolation
Mismatched redundant copies of data is known as data ............
dependance
redundancy
inconsistency
isolation
A ............ is an organized collection of structured data.
information
file
database
DBMS
A database ............... is a sketch of design of a planned data.
instance
schema
metadata
relation
A data ................ is a set of rules that define valid data.
constraint
data dictionary
query
all of these
A relational database consists of a collection of ..............
tables
fields
records
keys
Data redundancy may lead to data inconsistency.
True
False
In relational data model, the total number of rows can be identified as ______________________ .
Cardinality
Degree
Attribute
Entity
Identify the total number of attributes in a relational data model.
Tuple
Entity
Degree
Cardinality
