Relational Databases

Samual Sam
Published on 23-Jul-2018 14:19:14
These databases are categorized by a set of tables where data gets fit into a pre-defined category. The table consists of rows and columns where the column has an entry for data for a specific category and rows contains instance for that data defined according to the category. The Structured ... Read More

Operational Database

karthikeya Boyini
Published on 23-Jul-2018 14:17:27
Information related to operations of an enterprise is stored inside this database. Functional lines like marketing, employee relations, customer service etc. require such kind of databases.

NoSQL Databases

Samual Sam
Published on 23-Jul-2018 14:15:50
These are used for large sets of distributed data. There are some big data performance issues which are effectively handled by relational databases, such kind of issues are easily managed by NoSQL databases. There are very efficient in analyzing large size unstructured data that may be stored at multiple virtual ... Read More

Commercial Database

karthikeya Boyini
Published on 23-Jul-2018 14:14:11
These are the paid versions of the huge databases designed uniquely for the users who want to access the information for help. These databases are subject specific, and one cannot afford to maintain such a huge information. Access to such databases is provided through commercial links.

End User Database

Samual Sam
Published on 23-Jul-2018 14:12:36
The end user is usually not concerned about the transaction or operations done at various levels and is only aware of the product which may be a software or an application. Therefore, this is a shared database which is specifically designed for the end user, just like different levels’ managers. ... Read More

Personal database

karthikeya Boyini
Published on 23-Jul-2018 14:10:28
Data is collected and stored on personal computers which are small and easily manageable. The data is generally used by the same department of an organization and is accessed by a small group of people.

Distributed database

Samual Sam
Published on 23-Jul-2018 14:08:19
Just opposite of the centralized database concept, the distributed database has contributions from the common database as well as the information captured by local computers also. The data is not at one place and is distributed at various sites of an organization. These sites are connected to each other with ... Read More

Centralised database

karthikeya Boyini
Published on 23-Jul-2018 14:05:36
The information(data) is stored at a centralized location and the users from different locations can access this data. This type of database contains application procedures that help the users to access the data even from a remote location.Various kinds of authentication procedures are applied for the verification and validation of ... Read More

Types of databases

Samual Sam
Published on 23-Jul-2018 13:52:18
Depending upon the usage requirements, there are following types of databases available in the market −Centralised database.Distributed database.Personal database.End-user database.Commercial database.NoSQL database.Operational database.Relational database.Cloud database.Object-oriented database.Graph database.Let us explain all of them:1. Centralised DatabaseThe information(data) is stored at a centralized location and the users from different locations can access this ... Read More

'this' reference in Java

Samual Sam
Published on 23-Jul-2018 12:50:33
The this keyword'this' keyword is used to refer to the current object in action. Following are the scenarios where this keyword is used.It is used to differentiate the arguments passed vs the instance variables.It is used to invoke the current class constructor.It is used to return the current object.It is ... Read More
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