use information_schema;
查看所有
select concat(round(sum(data_length/1024/1024),2),\'MB\') as data from tables;
查看指定数据库
select concat(round(sum(data_length/1024/1024),2),\'MB\') as data from tables where table_schema=\'hivedb\';
查看指定表
select concat(round(sum(data_length/1024/1024),2),\'MB\') as data from tables where table_schema=\'busdata\' and table_name=\'syslog\';

 

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