1、查詢數(shù)據(jù)庫(kù)各表記錄數(shù)、數(shù)據(jù)容量（MB）、索引容量（MB）

select table_schema as '數(shù)據(jù)庫(kù)', 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='database_name' order by data_length desc, index_length desc;

2、查詢各數(shù)據(jù)庫(kù)的記錄數(shù)、數(shù)據(jù)容量（MB）、索引容量（MB）

select table_schema as '數(shù)據(jù)庫(kù)', 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;

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