mysql 查詢各表數據量

 執行如下sql：

SELECT TABLE_NAME, CONCAT(TRUNCATE(data_length/1024/1024,2),' MB') AS data_size,table_rows
FROM information_schema.tables WHERE TABLE_SCHEMA = '數據庫名' ORDER BY TABLE_ROWS desc

統計各表的記錄數和各表所佔用的內存量：