Swagbucks Review — Is Swagbucks a Scam or a Legit?

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How I Earn From Swagbucks  click on the link and join and start earning - https://www.swagbucks.com/p/register?rb=50161109 I have to admit that when I first went on the Swagbucks page, I was a bit puzzled and a little suspicious. It mentioned things like being a "first rewards site" and a leading online search engine. Even if they were a search engine, how can one produce rewards? Yet why haven't I ever learned about them? Okay, it turns out that Swagbucks is very true too. In a nutshell, Swagbucks is a search engine much like Google or Request, except you can earn award points only by browsing the site. And the forum is currently funded by Google and Ask! Join now -  https://www.swagbucks.com/p/register?rb=50161109 Swagbucks is a fairly good spot overall. You may easily load their toolbar on your device right next to your Google Toolbar and browse the Internet from there. The findings are similar to the same issue. When you're using the Web for analysis or job reason...
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Database Model

Database model describes the structure of a database. Data model is collection of conceptual tools for describing data, relationship etc. There are different type of database model which are as follows:



  • Hierarchical Database Model 


Database Model, type of database model, database model type, model of database, my knowledge to you dude, hierarchical database, hierarchical database model

Hierarchical database model is a database which records are logically organized into a hierarchy of relationship. It organizes the data into a tree-like structure (pattern). The records of hierarchy are called nodes. In this model of database, each node is related to the others in a parent-child relationship. This database model’s parent record may have one or more child record and a child nodes will only have a single parent node. Its searching is fast and easy, if parent is know. It is organised into ‘One-to-Many’ relationship.



Advantages
  1. It is the easiest model of database.
  2. Searching is fast and easy, if parent is known.
  3. It supports ‘One-to-Many’ relationship.


Disadvantages
  1. It is traditional database model (old model).
  2. It can not support ‘Many-to-Many’ relationship.
  3. When the parent node is deleted, all the child nodes are deleted automatically.

  • Network Database Model



It is a modified version of the hierarchical database (extension of the Hierarchical database model). In this database model, each nodes are allowed to have more than one parent. Searching is faster than hierarchical database model. And it is more flexible than hierarchical database model. Its structure is more complicated and less user-friendly than hierarchical database model/structure. Before relational database model was introduced this database is mostly use database model. It accept ‘many-to-many’ relationship. 


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Advantages 

  1. It is more flexible than hierarchical database model.
  2. It accepts ‘many-to-many’ relationship. 
  3. It has lower redundancy than hierarchical database model. 
  4. Searching is faster. 

Disadvantages 

  1. It is less user-friendly compared to hierarchical model.
  2. it is open to all so it is less secured.
  3. It is complex database model. 

  • Relational Database Model



The database model which is arranged in two-dimensional tables is known as relational database model. It is very easy for a user to develop and understand. The basic structure of data in the relational model is tables. In this database model, tables are known as relations. All the information related to particular subject is stored in rows of the table. Normalization of the database is possible. It has very less data redundancy rate. It is more complex that other database models. No processing can be done without establishing the data relationships.

Table 1                                                                            Table 2

Roll no.
First name
Last name

Id_st
Subject
Teacher
1
Peter
Buffet  
111
Math
Mark
2
Harry
Parker
222
Science
Dre
3
Sanjay
Dhakal
333
English
Denial

Relational Table

Roll no.
Id_st
Marks
1
111
80
2
222
65
3
333
95
   








                               Fig    Relational database model

Advantage 

  1. It has very less data redundancy rate. 
  2. Normalization of the database is possible.
  3. Rapid processing of database is possible. 

Disadvantages 

  1. It is more complex than other models
  2. It is very hard to understand so it is non-user-friendly. 
  3. Its is expensive while setting and maintaining the database system. 



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