数据库和表的内存大小

Question

我是MySQL学习的新手。我有一个由34个表组成的数据库。我只想知道数据库和每个表的内存大小。是否有任何特殊查询或脚本来查找内存大小？这个你能帮我吗。我正在使用InnoDB引擎。

Answer 1

对于DB

 SELECT table_schema AS "Database", 
 ROUND(SUM(data_length + index_length) / 1024 / 1024, 2) AS "Size (MB)" 
 FROM information_schema.TABLES 
 GROUP BY table_schema;

表格

SELECT table_name AS "Table",
ROUND(((data_length + index_length) / 1024 / 1024), 2) AS "Size (MB)"
FROM information_schema.TABLES
WHERE table_schema = "database_name"
ORDER BY (data_length + index_length) DESC;