mysql 데이터 용량 확인

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 
where table_name = 'TN_MM_PRDUCT_MTTR_DISTB_QY_D' ;