Answer:
Explanation:A data extraction tool, often known as a data scraper, is a useful tool for gathering data. These tools are made to streamline the procedure of gathering information from multiple websites, databases, papers, or APIs. They enable users to establish the sources, specify the data they wish to extract, and obtain the pertinent data in an organised way.
Depending on predetermined criteria, data extraction tools can be configured to extract particular data pieces, such as text, photos, or numerical values. Compared to manual data gathering methods, they can efficiently manage enormous volumes of data and carry out repetitive activities.
Tools for data extraction that are often used include:
Web scraping technologies are used to collect data from websites by browsing web pages, finding desirable components, and obtaining pertinent data. BeautifulSoup, Scrapy, and Selenium are a few tools used for web scraping.
Database Querying Tools: These tools enable users to write and run SQL queries to retrieve data from databases. MySQL Workbench, Microsoft SQL Server Management Studio, and Oracle SQL Developer are three common database querying tools.
Data is extracted from a variety of sources, transformed into the desired format or structure, and then loaded into a target system using ETL (Extract, Transform, Load) technologies. They are frequently employed in data warehousing and integration settings.