数据库——MySQL如何查看table(表)占用空间的大小

网上找的一个，亲测可用:

//先进去MySQL自带管理库：information_schema  //然后查询 data_length,index_length//你自己的数据库名：dbname   //你自己的表名：tablename    mysql> use information_schema;  Database changed  mysql> select data_length,index_length      -> from tables where      -> table_schema='dbname'      -> and table_name = 'tablename';  +-------------+--------------+  | data_length | index_length |  +-------------+--------------+  |   166379520 |    235782144 |  +-------------+--------------+  row in set (0.02 sec)    mysql> select concat(round(sum(data_length/1024/1024),2),'MB') as data_length_MB,      -> concat(round(sum(index_length/1024/1024),2),'MB') as index_length_MB      -> from tables where      -> table_schema='dbname'      -> and table_name = 'tablename';  +----------------+-----------------+  | data_length_MB | index_length_MB |  +----------------+-----------------+  | 158.67MB       | 224.86MB        |  +----------------+-----------------+  row in set (0.03 sec)