navicat查看MySQL數據庫、表容量大小

 1. 查看所有數據庫容量大小

    select
    table_schema as '數據庫',
    sum(table_rows) as '記錄數',
    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;

2. 查看所有數據庫各表容量大小

1. select
2. table_schema as '數據庫',
3. table_name as '表名',
4. table_rows as '記錄數',
5. truncate(data_length/1024/1024, 2) as '數據容量(MB)',
6. truncate(index_length/1024/1024, 2) as '索引容量(MB)'
7. from information_schema.tables
8. order by data_length desc, index_length desc;

3. 查看指定數據庫容量大小

例：查看mysql庫容量大小

1. select
2. table_schema as '數據庫',
3. sum(table_rows) as '記錄數',
4. sum(truncate(data_length/1024/1024, 2)) as '數據容量(MB)',
5. sum(truncate(index_length/1024/1024, 2)) as '索引容量(MB)'
6. from information_schema.tables
7. where table_schema='mysql';

4. 查看指定數據庫各表容量大小

例：查看mysql庫各表容量大小

1. select
2. table_schema as '數據庫',
3. table_name as '表名',
4. table_rows as '記錄數',
5. truncate(data_length/1024/1024, 2) as '數據容量(MB)',
6. truncate(index_length/1024/1024, 2) as '索引容量(MB)'
7. from information_schema.tables
8. where table_schema='mysql'
9. order by data_length desc, index_length desc;