In this post, I am sharing a useful DBA script to find largest databases on MySQL Server.

This kind of handy script always useful while DBA requires quick monitoring on the Database Server.
So, I am always finding this kind of script and sharing here for making DBA task easier.

I prepared few calculated columns with the help of information_schema.TABLES.

SELECT
	COUNT(*) AS TotalTableCount
	,table_schema
	,CONCAT(ROUND(SUM(table_rows)/1000000,2),'M') AS TotalRowCount
	,CONCAT(ROUND(SUM(data_length)/(1024*1024*1024),2),'G') AS TotalTableSize
	,CONCAT(ROUND(SUM(index_length)/(1024*1024*1024),2),'G') AS TotalTableIndex
	,CONCAT(ROUND(SUM(data_length+index_length)/(1024*1024*1024),2),'G') TotalSize	
FROM information_schema.TABLES
GROUP BY table_schema
ORDER BY SUM(data_length+index_length) 
DESC LIMIT 10;