痴心VS绝对 发表于 2016-10-21 02:21:53

查询MySQL数据库库和索引占用的空间

  查整个库的状态:
select concat(truncate(sum(data_length)/1024/1024,2),’MB’) as data_size,
concat(truncate(sum(max_data_length)/1024/1024,2),’MB’) as max_data_size,
concat(truncate(sum(data_free)/1024/1024,2),’MB’) as data_free,
concat(truncate(sum(index_length)/1024/1024,2),’MB’) as index_size
from information_schema.tables where TABLE_SCHEMA = ‘databasename’;
  
  查单表:
select concat(truncate(sum(data_length)/1024/1024,2),’MB’) as data_size,
concat(truncate(sum(max_data_length)/1024/1024,2),’MB’) as max_data_size,
concat(truncate(sum(data_free)/1024/1024,2),’MB’) as data_free,
concat(truncate(sum(index_length)/1024/1024,2),’MB’) as index_size
from information_schema.tables where TABLE_NAME = ‘tablename’;
  
  
  我试过了,只改tablename 或 databasename 就可以的。
  
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