Introduction to DBMS and It's Type's
Topic : Introduction To DBMS and Its Type's
Objective
- To be aware different Open Source Databases.
- To Study of different types of Database.
- and abstract level information of each Database.
- To compare the different database systems based on points like efficiency, scalability ,characteristics and performance.
AGENDA
1. Open Source Software2. What is Database ?
3. What is DBMS ?
4. Types of DBMS
5. Popular DBMS Software
1. Open Source Software
Open-source software (OSS) is computer software with its source code made
available and licensed with a license in which the copyright holder provides the rights to study, change and distribute the software to anyone and for any purpose. Open-source software is very often developed in a public, collaborative manner. Open-source software is the most prominent example of open-source development and often compared to (technically defined) user-generated content or (legally defined)open-content movements.
A database is a base for data. An Open Source database is a base for data that
includes Free and Open Source Software. Open source software is software that
makes the source code available to anyone. The user is allowed to implement, share and further develop the database software to suit various needs.
available and licensed with a license in which the copyright holder provides the rights to study, change and distribute the software to anyone and for any purpose. Open-source software is very often developed in a public, collaborative manner. Open-source software is the most prominent example of open-source development and often compared to (technically defined) user-generated content or (legally defined)open-content movements.
A database is a base for data. An Open Source database is a base for data that
includes Free and Open Source Software. Open source software is software that
makes the source code available to anyone. The user is allowed to implement, share and further develop the database software to suit various needs.
2. What is Database ?
A database is a separate application that stores a collection of data. Each database has one or more distinct APIs for creating, accessing, managing, searching and replicating the data it holds. So nowadays, we use relational database management systems (RDBMS) to store and manage huge Volume of data. This is called relational database because all the data is stored into
different tables and Relations are established using primary keys or other keys known as foreign keys.
different tables and Relations are established using primary keys or other keys known as foreign keys.
3. What is DBMS ?
A software system that enables users to define, create, maintain, and control access to the database. The DBMS is the software that interacts with the users’ application programs and the database.Typically, a DBMS provides the following facilities:
- It allows users to define the database, usually through a Data Definition Language (DDL). The DDL allows users to specify the data types and structures and the constraints on the data to be stored in the database.
- It allows users to insert, update, delete, and retrieve data from the database, usually through a Data Manipulation Language (DML). The most common query language is the Structured Query Language (SQL, pronounced ‘S-Q-L’, or sometimes ‘See-Quel’), which is now both the formal and de facto standard language for relational DBMSs.
- Data redundancy and inconsistency.
- Data isolation.
- Uniform data administration
- Reduced application development time
- Recovery from crashes.
- Concurrent-access anomalies.
3.2 Disadvantages of Database
– Complexity
– Size
– Additional hardware costs
– Cost of DBMS
– Performance
– Higher impact of failure
4. Types of DBMS
- Relational Databases.
- Object-oriented Databases.
- Hierarchical Databases.
- Network Databases.
- Graph Databases.
- ER model Databases.
- Document Databases.
5. Popular DBMS Software
- MySQL
- PostgreSQL
- SQLite
- MongoDB
5.1 MySQL
MySQL is an open-source relational database management system (RDBMS). Its nameis a combination of "My", the name of co-founder Michael Widenius' daughter,and "SQL", the abbreviation for Structured Query Language.. The SQL phrase stands for Structured Query Language. MySQL is a popular choice of database for use in web applications, and is a central component of the widely used LAMP open source web application software stack. LAMP is an acronym for "Linux, Apache, MySQL, Perl/PHP/Python". Free-software-open source projects that require a full-featured database management system often use MySQL. MySQL is also used in many high-profile, large-scale websites, including Wikipedia, Google (though not for searches), Facebook, Twitter, Flickr, and YouTube. MySQL is the most popular and widely used relational database management system that provides multi-user access to number of databases. MySQL is now owned by Oracle and uses Sequential Query Language to manage database. Its source is available under GNU license and propriety agreements. MySQL is most popular among PHP developers and used for websites, web applications and online services.
5.2 PostgreSQL
PostgreSQL, often simply Postgres, is an object-relational database management
system (ORDBMS) with an emphasis on extensibility and standards compliance. As a database server, its primary functions are to store data securely and return that data in response to requests from other software applications. It can handle workloads ranging from small single-machine applications to large Internet-facing applications (or for data warehousing) with many concurrent users. on macOS Server, PostgreSQL is the default database, and it is also available for Microsoft Windows and Linux (supplied in most distributions).
system (ORDBMS) with an emphasis on extensibility and standards compliance. As a database server, its primary functions are to store data securely and return that data in response to requests from other software applications. It can handle workloads ranging from small single-machine applications to large Internet-facing applications (or for data warehousing) with many concurrent users. on macOS Server, PostgreSQL is the default database, and it is also available for Microsoft Windows and Linux (supplied in most distributions).
Available for all platforms Mac, Windows, Solaris and Linux under MIT license, PostgreSQL supports all the properties of major databases. PostgreSQL is currently available as version 9.1.
PostgreSQL is ACID-compliant and transactional. PostgreSQL has updatable views and materialized views, triggers, foreign keys; supports functions and stored procedures, and other expandability.
PostgreSQL is developed by the PostgreSQL Global Development Group, a diverse group of many companies and individual contributors. It is free and open-source, released under the terms of the PostgreSQL License, a permissive software license.
PostgreSQL is developed by the PostgreSQL Global Development Group, a diverse group of many companies and individual contributors. It is free and open-source, released under the terms of the PostgreSQL License, a permissive software license.
5.3 SQLite
SQLite is a small lightweight embedded database used in Application File formats, Database for mobile apps and websites. SQLite has compliance with ACID properties of database. It is faster and has simple to use API. SQLite comes with a standalone command-line interface (CLI) client that can be used to administer SQLite databases.
5.4 MongoDB
MongoDB (from humongous) is a free and open-source cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with schemas. MongoDB is developed by MongoDB Inc. and is free and open-source, published under a combination of the GNU Affero General Public License and the Apache License.
Development of MongoDB began in 2007, when the company (then named 10gen) was building a platform as a service similar to Windows Azure or Google App Engine. In 2009, MongoDB was open sourced as a stand-alone product with an AGPL license. MongoDB has been adopted as backend software by a number of major websites and services, including eBay, Foursquare, SourceForge, Viacom, and the New York Times, among others. MongoDB is the most popular NoSQL database system.
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