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摘要： 1. Basic aggregation Data aggregation is the process of gathering and expressing data in a summary to get more information about particular groups bas 阅读全文

摘要： 1. Data exchanging with LOAD To move data, Hive uses the LOAD statement. Move here means the original data is moved to the target table/partition and 阅读全文

摘要： 1. Project data with SELECT The most common use case for Hive is to query data in Hadoop. To achieve this, we need to write and execute a SELECT state 阅读全文