Type of views-data control, Database Management System

Assignment Help:

Type of views:

 Simple views and Difficult Views

Feature

Simple Views

Complex Views

Number of tables

One

One or more

Contain Functions

No

Yes

Contain groups of data

No

Yes

Data Manipulation

IS allowed

Not always

Let us look into some of the examples. To see all the details about existing views in

Oracle:

SELECT* FROM USER_VIEWS;

 


Related Discussions:- Type of views-data control

What is the main goal of raid technology, What is the main goal of RAID tec...

What is the main goal of RAID technology? Describe the levels 1 through 5. RAID stands for Redundant Array of Inexpensive (or sometimes "Independent")Disks. RAID is a met

How can redundant associations be done, How can Redundant Associations be d...

How can Redundant Associations be done It can be done by asking questions: i)  Is there a specific arrangement of network which would optimize critical aspects of completed

Aggregation, What does Aggregation mean?

What does Aggregation mean?

In tuple relational calculus p1- p2 is equivalent to, In tuple relational ...

In tuple relational calculus P1 → P2 is equivalent to ? A In tuple relational calculus P1→  P2 is equivalent to ¬P1 V P2. (The logical implication expression A  B, meaning

Hashing, how to implement mid square hashing?

how to implement mid square hashing?

Which data manipulation command combines the records, Which data manipulati...

Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.

Apriori algorithm-find all frequent large itemsets, Your friend owns a comp...

Your friend owns a computer store in Yuen Long, selling Desktop and Notebook PCs and other computer peripherals. Having been rather successful with his business there, he decided t

Define a relation in dbms, Define a relation ? Relation - A relations...

Define a relation ? Relation - A relations is a named two-dimensional table of data. Mathematically, a relation can be described as a subset of the cartesian product of a lis

What does the cardinality ratio specify, What does the cardinality ratio sp...

What does the cardinality ratio specify? Mapping cardinalities or cardinality ratios state the number of entities to which another entity can be associated. Mapping cardinaliti

Mapping, external and internal mapping with examples

external and internal mapping with examples

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd