摘要： 1、统计数据库的剩余的使用空间SELECT tablespace_name, trunc ( sum (bytes ) / (1024*1024) ) as free_m, sum ( blocks ) as free_blk , max ( bytes ) / (1024) as big_chunk_k, count (*) as num_chunks FROM dba_free_spaceGROUP BY tablespace_name ;结果：TABLESPACE_NAME FREE_M FREE_BLK BIG_CHUNK_K NUM_CHUNKS-----------------.. 阅读全文