What is a data extract, and how does it work?

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Data extract refers to a set of data that is obtained from a larger data source for a certain purpose. What is a data extract? Well, it is a situation whereby you choose the data that is needed as opposed to using a whole data source. For instance, an online business will extract the names of products, their prices, and other relevant information from various web sites. In most cases, the data extraction process usually entails choosing the source, getting relevant data from the source and putting it into useable format. Depending on the projects involved, businesses may opt to do data extraction manually or through automation.