Finding out largest tables on MySQL Server

Posted 2021-03-02 长城之上是千亿的星空，星空之上是不灭的守望。

 

SELECT CONCAT(table_schema, ‘.‘, table_name),

       CONCAT(ROUND(table_rows / 1000000, 2), ‘M‘) rows,

       CONCAT(ROUND(data_length / ( 1024 * 1024 * 1024 ), 2), ‘G‘) DATA,

       CONCAT(ROUND(index_length / ( 1024 * 1024 * 1024 ), 2), ‘G‘) idx,

       CONCAT(ROUND(( data_length + index_length ) / ( 1024 * 1024 * 1024 ), 2), ‘G‘) total_size,

       ROUND(index_length / data_length, 2) idxfrac

FROM information_schema.TABLES

ORDER BY data_length + index_length DESC

LIMIT 10;