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We offers every type of database work in Oracle, MySql, MongoDb, SQL Server, MS Access , Postgree etc.

Not only do we enjoy showcasing  database Assignment,  but also sharing details about the creative process behind each Database Homework and get in touch if you have a Database Assignment Homework in mind that you’d like to explore together.

Some of the key concepts of database management systems. These include:

  • Database creation

  • Tables

  • Adding data to your database

  • Querying a database

  • Relational database design

Our Database Assignment Expert will help you in everything from basic database operation to advanced database operation like DML, DCL, DDL, TCL

What is Database

The database is a collection of data which is used to retrieve, insert and delete the data efficiently and each data is related logically to each other to fulfil  some need like data of student, Employee, Vehicle.

Each Record or data of student or employee is also well - organized  in the form of a table, schema, views, and reports, etc. 

 

Database management system (DBMS) is software that is used to store, manage, retrieve  the database.

Our DBMS Expert will help you in  all topics of DBMS such as introduction, ER model, keys, relational model, join operation, SQL, functional dependency, transaction, concurrency control, etc.

For example: The College  database stores the data about the admin, staff, students and faculty etc.

so that with help of the database easily can  retrieve, insert, and delete the information.

Database Management System

  • Database management system (DBMS) is a software which is used store, retrieve,  manage the data.  For example: Oracle,MySql, SQL Server, MS Access  etc are a very popular commercial database which is used in different applications.

  • With the Help of DBMS software we can perform various operations like database creation, Insertion, Renaming, deletion, updation, Granting user permission in the selected database and a lot more.

  • DBMS also provides protection and security to the database. like creating multiple user with credential with the help of granting and removing permission of database.

Characteristics of DBMS

  • Provide a clear and logical view of the process the data.

  • Structures and described data

  • Stores any kind of data

  • Support ACID (Accuracy, Completeness, Isolation, and Durability) properties

  • Backup and recovery

  • Data integrity

  • Concurrent use of database

  • Reduce the complex relationship between data.

  • View the database from different viewpoints according to the requirements of the user.

 

Advantages of DBMS

  • Easily Maintenance

  • Data sharing

  • Reduce time

  • Controls database redundancy

  • Backup

Disadvantages of DBMS

  • Cost of Hardware and Software

  • Size - large space of disks and large memory to run them efficiently.

  • Higher impact of failure

Why  Database is so Important?

Database 's a collection of organized data on a system that can be accessed, updated, managed easily by computer program.Storing data means managing  so that we can access data fastly and efficiently.

 

By using a DBMS,It's a software where  we store  data ,is more accessible and integrated with the rest of our work. We need some way to collect, store, retrieve, sort, graph, and manipulate the data of the world.

 

Databases allow us to do this. Without them we would be unable to do many of the things we can do today.

So we need a database systems to store and operate data.

Which Topics need to learn for Database

  • SQL query

  • DBMS kernel

  • Basics of DBMS

  • DDL, DCL, and DML

  • Designing Schema

  • Joins and Keys

  • Thread locks and types of locks

  • Replication and various cluster types and configurations

  • Various Storage Engines 

  • Basic parameters in the configuration file.

  • Configure an OS for various sizes and scale of databases

  • Basic troubleshooting commands

  • Normalization

  • Transactions and Concurrency Control

  • Functional Dependencies

  • Indexing, B and B+ trees

  • File Organization

  • Relational Model

  • Entity-Relationship Model

 

Entity-Relationship Model

  • ER model stands for an Entity-Relationship model. It is a high-level data model. This model is used to define the data elements and relationships for a specified system.

  • It develops a conceptual design for the database. It also develops a very simple and easy to design view of data.

  • In ER modeling, the database structure is portrayed as a diagram called an entity-relationship diagram.

Normalization

Database normalization is a database schema design technique, by which an existing schema is modified to minimize redundancy and dependency of data. It divided into different categories:

  • 1NF

  • 2NF

  • 3NF

  • BCNF

  • 4NF

  • 5NF

Functional Dependencies

A functional dependency is a constraint between two sets of attributes in a relation from a database. In other words, a functional dependency is a constraint between two keys.

Transactions and Concurrency Control

A transaction is a logical piece of work of any database, which may be a complete program, a fraction of a program, or a single command (like the: SQL command INSERT or UPDATE) that may involve any number of processes on the database.

Join in Database

A JOIN clause is used to combine rows from two or more tables, based on a related column between them.

Databases use different types of join:

  • (INNER) JOIN: Returns records that have matching values in both tables

  • LEFT (OUTER) JOIN: Returns all records from the left table, and the matched records from the right table

  • RIGHT (OUTER) JOIN: Returns all records from the right table, and the matched records from the left table

  • FULL (OUTER) JOIN: Returns all records when there is a match in either left or right table

Relational Model

Relational Model represents how data is stored in Relational Databases.  A relational database stores data in the form of relations (tables). Relational Model was proposed by E.F. Codd to model data in the form of relations or tables. 

Methods of Storing data?

Most Common Methods to Store Data allow us to do this.

Text File: The most common is .CSV File, comma separated values (CSV) file

Spreadsheet: Spreadsheet using spreadsheet software like Microsoft Excel, Open Office.

Database Software: A better option would be to store the data in a database table using specialized database software, such as Microsoft Access.

Types of database

There are a few types of database management system

  • Flat file database

  • Relational database

  • Object-oriented database

  • Network database

  • Hierarchical database

We Use following Database in Database Assignment Help

Access  Database Assignment Help: Microsoft Access is a desktop database management system (DBMS). It comes bundled with Microsoft Office and is aimed towards individuals and small businesses.

MySQL Database Assignment Help: MySQL is the world's most popular open source database management system. It is used by websites, blogs, corporate environments, and more.

SQL Database Server Assignment Help: SQL Server is an enterprise database management system from Microsoft. It is a client/server database and is used throughout corporate environments throughout the world.

SQLite Database Assignment Help: SQLite is the world's most distributed database management system. It is used in web browsers, mobile phones, tablets, computer software, and more. Chances are, it's already installed on your system.

Oracle Database Assignment Help: An Oracle database is a collection of data treated as a unit. The purpose of a database is to store and retrieve related information. A database server is the key to solving the problems of information management.

MongoDB Database Assignment Help: MongoDB is another NoSQL database management system. It uses a document model to store data. Data is stored as JSON/BSON documents. These documents are semi-structured, and represent the flexible schema of the database.

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