mysql - Mysql list tables and sizes - order by size

Question

What would be the query to list all tables in a database order by their size in mysql?

Answer 1

Try this...

SELECT TABLE_NAME, table_rows, data_length, index_length, 
round(((data_length + index_length) / 1024 / 1024),2) "Size in MB"
FROM information_schema.TABLES WHERE table_schema = "schema_name"
ORDER BY (data_length + index_length) DESC;

Note: Replace schema_name above with the name of your database

Answer 2

Run the following query in the mysql client

SELECT table_name AS "Tables", 
round(((data_length + index_length) / 1024 / 1024), 2) "Size in MB" 
FROM information_schema.TABLES 
WHERE table_schema = "$DB_NAME"
ORDER BY (data_length + index_length) DESC;

Answer 3

Execute following query in information_schema database:

SELECT table_schema AS "Database name",
SUM(data_length + index_length) / 1024 / 1024 AS "Size (MB)" 
FROM information_schema.TABLES 
GROUP BY table_schema 
ORDER BY (SUM(data_length + index_length) / 1024 / 1024) DESC;