簡介
背景:現在大量的MySQL服務遷移到雲上了,所以當發生空間佔用的時候,分析哪個表佔用較多就很麻煩,如果快速鎖定元兇呢?
方案
一句話鎖定元兇
select
table_schema as '數據庫名稱',
sum(table_rows) as '記錄總數',
sum(truncate(data_length/1024/1024, 2)) as '數據容量(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;
提取出來的數據一目瞭然,好好看看如何修理大表吧!