1. 查看所有數(shù)據(jù)庫容量大小
select
? ? table_schema as '數(shù)據(jù)庫',
? ? sum(table_rows) as '記錄數(shù)',
? ? sum(truncate(data_length/1024/1024, 2)) as '數(shù)據(jù)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;
2. 查看所有數(shù)據(jù)庫各表容量大小
select
table_schema?as?'數(shù)據(jù)庫',
table_name?as?'表名',
table_rows?as?'記錄數(shù)',
truncate(data_length/1024/1024,?2)?as?'數(shù)據(jù)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;
3. 查看指定數(shù)據(jù)庫容量大小
例：查看mysql庫容量大小
select
table_schema?as?'數(shù)據(jù)庫',
sum(table_rows)?as?'記錄數(shù)',
sum(truncate(data_length/1024/1024,?2))?as?'數(shù)據(jù)容量(MB)',
sum(truncate(index_length/1024/1024,?2))?as?'索引容量(MB)'
from information_schema.tables
where table_schema='mysql';
4. 查看指定數(shù)據(jù)庫各表容量大小
例：查看mysql庫各表容量大小
select
table_schema?as?'數(shù)據(jù)庫',
table_name?as?'表名',
table_rows?as?'記錄數(shù)',
truncate(data_length/1024/1024,?2)?as?'數(shù)據(jù)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;
