dcsimg

Tables spanning across multiple datafiles

February 21, 2003



>>Script Language and Platform: Oracle 8+
This script is useful for finding out how rows in a table are spread across different datafiles and how many rows are there in each datafile for that table.

Author: K.Chithra


ACCEPT OWNER CHAR PROMPT "ENTER OWNER NAME : " 
ACCEPT TABNAME CHAR PROMPT "ENTER TABLE NAME : " 
COL count Heading "Rows" 
COL name HEADING "File Name " for a60 
set verify off 

select name ,t.count from 
v$datafile d, 
(select count(*) count ,dbms_rowid.rowid_relative_fno(rowid) file# 
from &&OWNER..&&TABNAME group by dbms_rowid.rowid_relative_fno(rowid)) t 
where t.file#=d.file# 
/ 
undefine OWNER 
undefine TABNAME 

****************
Ouput will be like :
File Name Rows 
------------------------------------------------------------ ---------- 
/ausdb/cre/ORACLE/dbase007/o_sem_01.dbf 15572 
/ausdb/cre/ORACLE/dbase017/p_sem_02.dbf 1572 
/ausdb/cre/ORACLE/dbase019/p_sem_03.dbf 10072


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