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='数据库名称'
order by data_length desc, index_length desc;
select
table_schema as '数据库',
table_name as '表名',
阅读背景：
mysql查询数据库每张表数据量大小和占用多少空间
来源：互联网
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