Database (2024)

FAQs

What do you mean by database? ›

A database is an electronically stored, systematic collection of data. It can contain any type of data, including words, numbers, images, videos, and files. You can use software called a database management system (DBMS) to store, retrieve, and edit data.

A database is an organized collection of structured information, or data, typically stored electronically in a computer system.

Databases are used to store and manage large amounts of structured and unstructured data, and they can be used to support a wide range of activities, including data storage, data analysis, and data management. They are used in a variety of settings, including business, scientific, and government organizations.

A database is information that is set up for easy access, management and updating. Computer databases typically store aggregations of data records or files that contain information, such as sales transactions, customer data, financials and product information.

The SELECT statement allows you to ask the database a question (Query it), and specify what data it returns.

MySQL, SQL Server, MongoDB, Oracle Database, PostgreSQL, Informix, Sybase, and others are all different types of databases commonly used today. These modern databases are managed by a Database Management System (DBMS).

Data within the most common types of databases in operation today is typically modeled in rows and columns in a series of tables to make processing and data querying efficient. The data can then be easily accessed, managed, modified, updated, controlled, and organized.

Expert-Verified Answer

A table name must be unique within a database.

A relational database (RDB) is a way of structuring information in tables, rows, and columns. An RDB has the ability to establish links—or relationships–between information by joining tables, which makes it easy to understand and gain insights about the relationship between various data points.

What is the world description of a database called? ›

Explanation: The schema of the database shows the overall structure of the database.It shows the entire working of the database. The Database schema shows the each required table of the database in the schema.It shows the attributes of each table in the database. The relationship between the various table.

A primary key, also called a primary keyword, is a column in a relational database table that's distinctive for each record. It's a unique identifier, such as a driver's license number, telephone number with area code or vehicle identification number (VIN). A relational database must have only one primary key.

Your grocery store, bank, restaurant, online shopping sites, hospital, favorite clothing store and mobile service provider, for instance all use databases to keep track of customer, inventory, employee and accounting information.

The objective of realizing a shared database encompasses the ability to centralize, coordinate, and integrate the collection and storage of data. This can result in increased consistency, reduced redundancy, and reduced effort in the capture and maintenance of data.

A spreadsheet is not a database. They look similar, and they are both great ways to store information, but there are three primary differences between the two: How the data is stored and interacted with. Who can access the data. How much data can be stored.

The correct answer is True.

Generally, a database is an organized collection of data that is stored and managed on a computer system. Some common types of information that can be stored in a database include: Customer data - such as names, addresses, phone numbers, and email addresses.

Databases can store information about people, products, orders, or anything else. Many databases start as a list in a word-processing program or spreadsheet.