DB 용량 구하는 방법

SELECT

count(*) NUM_OF_TABLE,

table_schema,concat(round(sum(table_rows)/1000000,2),'M') rows,

concat(round(sum(data_length)/(1024*1024*1024),2),'G') DATA,

concat(round(sum(index_length)/(1024*1024*1024),2),'G') idx,

concat(round(sum(data_length+index_length)/(1024*1024*1024),2),'G') total_size,

round(sum(index_length)/sum(data_length),2) idxfrac

FROM information_schema.TABLES

GROUP BY table_schema

ORDER BY sum(data_length+index_length) DESC LIMIT 10;