Import the central data into the mysql database, import the data related to the enterprise information crawled from the Internet into the MongoDB database, use the stored procedure on the mysql database server to initially extract, convert and load the data into the table of the ODS layer, and use kettle to ODS layer Further ETL processing is performed on the data, such as scheduling the stored procedure in the previous link, incrementally updating the data of several tables except the basic… Show more Import the central data into the mysql database, import the data related to the enterprise information crawled from the Internet into the MongoDB database, use the stored procedure on the mysql database server to initially extract, convert and load the data into the table of the ODS layer, and use kettle to ODS layer Further ETL processing is performed on the data, such as scheduling the stored procedure in the previous link, incrementally updating the data of several tables except the basic table to the EDW layer, and performing slow gradually changing dimensions (SCDs) processing on the basic information of the enterprise.Use js for burying processing on the front-end customer service system to obtain user behavior data. Import these data into my big data processing center, use machine learning and data mining tools to mine and analyze user behavior, and feed back the analysis results to the background server for utilization. Show less