【查看數據庫空間，不看清單】
select dbsname,count(*) num_of_extents,sum(pe_size)
from sysmaster:systabnames,sysmaster:sysptnext
where partnum = pe_partnum and dbsname="dbname"
group by 1
order by 2 desc,3 desc;
查所有庫的，如果有informix用戶，可以這樣：
dbaccess sysmaster<<!
SELECT dbsname[1,15] database_name, SUM(pe_size) size
FROM sysmaster:sysptnext,
OUTER sysmaster:systabnames
WHERE pe_partnum = partnum
GROUP BY 1
ORDER BY 2 DESC;
!
--查每個表(如果1page=16K)
select dbsname,tabname,count(*) num_of_extents,sum(pe_size)*16/1024/1024
from sysmaster:systabnames,sysmaster:sysptnext
where partnum = pe_partnum and dbsname="dbname"
group by 1,2
order by 3 desc,4 desc;
--查整個庫(如果1page=16K)
select dbsname,count(*) num_of_extents,sum(pe_size)*16/1024/1024
from sysmaster:systabnames,sysmaster:sysptnext
where partnum = pe_partnum and dbsname="dbname"
group by 1
order by 2 desc,3 desc;
--查所有庫(如果1page=16K)
dbaccess sysmaster<<!
SELECT dbsname[1,15] database_name, SUM(pe_size) size*16/1024/1024
FROM sysmaster:sysptnext,
OUTER sysmaster:systabnames
WHERE pe_partnum = partnum
GROUP BY 1
ORDER BY 2 DESC;
!
【查看系統page size的方法，不知道對不對】：
oncheck -pr|grep Page查到以下一堆page size，16k才是當前的！
Page Size 2048 (b)
Index Page Logging OFF
Logical log position at Ckpt 0x4f46018 (Page 20294, byte 24)
Log contains last checkpoint: Page 20294, byte 24
Pagesize (k) 2
Pagesize (k) 2
Pagesize (k) 2
Pagesize (k) 2
Pagesize (k) 16