查询数据库所占空间大小

目录

统计数据库整体所占大小：

统计数据库中各表所占大小：

统计数据库整体所占大小：

select
table_schema as '数据库',
sum(table_rows) as '记录数',
sum(truncate(data_length/1024/1024, 2)) as '数据容量(MB)',
sum(truncate(index_length/1024/1024, 2)) as '索引容量(MB)'
from information_schema.tables
where table_schema='wisdom_campus' 

结果如下：

统计数据库中各表所占大小：

select
table_schema as '数据库',
table_name as '表名',
table_rows as '记录数',
truncate(data_length/1024/1024, 2) as '数据容量(MB)',
truncate(index_length/1024/1024, 2) as '索引容量(MB)'
from information_schema.tables
where table_schema='wisdom_campus'
order by data_length desc, index_length desc;

 结果大小：