贡献摘录
如果不涉及分区表用下面的方式查看表的使用情况:
select TABLE_SCHEMA,TABLE_NAME,TABLE_ROWS,
(DATA_LENGTH+INDEX_LENGTH)/1024/1024/1024 as table_size from tables order by table_size
desc limit 20;
另外partition表提供了分区表和非分区表的资源使用情况(我们使用分区表较多):
select TABLE_SCHEMA,TABLE_NAME,PARTITION_NAME,TABLE_ROWS,
(DATA_LENGTH+INDEX_LENGTH)/1024/1024/1024 as table_size from
information_schema.PARTITIONS order by table_size desc limit 20;