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本帖最后由 君山 于 2020-9-7 13:46 编辑
1.查看所有数据库容量大小
- 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
- group by table_schema
- order by sum(data_length) desc, sum(index_length) desc;
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2.查看所有数据库各表容量大小
- 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
- order by data_length desc, index_length desc;
复制代码
3.查看指定数据库容量大小例:查看mysql库容量大小
- 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='mysql';
复制代码
4.查看指定数据库各表容量大小例:查看mysql库各表容量大小
- 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='mysql'
- order by data_length desc, index_length desc;
复制代码
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