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large. Therefore, we need to clarify our own needs. Like baking a cake, you may want to add all kinds of condiments, but you will not put red chilies in it, because it is irrelevant to baking a cake. Therefore, to solve problems based on big data, you want to remove irrelevant data and focus on valuable data. Big Data Challenges to computing There is an interest

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3B War intensified, Sogou also in the Dark War, the domestic search market, the basic has been divided into three major giants, and the competition will only become increasingly fierce, comprehensive large-scale search has become the Red Sea. And in the domestic Internet rapid development trend, the number of domestic netizens is increasing, in the vertical search field is hidden many opportunities. With the arrival of domestic e-commerce environment,

Project Description: The background database is queried or updated according to the user's actions on the front page.Error description: After multiple operations on the webpage, the page will error: "The database exceeds the maximum number of connections."Error Analysis: Each time a webpage is opened, a Java code Connection database is run to facilitate the subsequent operation of the data. After multiple operations on a Web page, the database is connected multiple times. This error occurs becau