Can you please help me in creating a stored procedure which can create a tablesapce in a specified location ?

Question

Hello ...
Can you please help me in writing a procedure which can create tablespace. like i have a requirement that
through sql query i need to get the location of where the data file of the newly created tablespace need to be stored.
I need to store the location of the datafiles in a variable and i need to use that variable for specifying the location of the data file in newly created data file.
please help me writing this procedure.....
Regards vinay raj.
Thanks in advance..

Answer 1

select distinct substr(file_name,1,instr(file_name,'/',-1)) from dba_data_files;
Run this in a few of your databases and see how often you ONLY get one row returned.
Normally there is no "default" file system for data files (read about the DB_CREATE_FILE_DEST parameter and Oracle Managed Files for the exception to that).
You could pick the same file system as an existing tablespace, but even then there is no guarantee that the file system has sufficient space for the new tablespace - you have to check that OUTSIDE the database.
Given the query at the top it is pretty simple to create a SQL script that generates a SQL script.  This can be run in any database via sqlplus, and then the generated script can be edited as needed and run immediately, under human control, avoiding surprises.
set echo off
set feedback off
set heading off
set lines 100
spool myts.sql
select distinct 'create tablespace MYTS DATAFILE '''||substr(file_name,1,instr(file_name,'/',-1))||'myts01.dbf'' size 40M ONLINE;' stmt
from dba_data_files;
spool off
For example, if you find there are multiple filesystems to choose from, run this then delete the filesystems you don't want from the generated script.  If you find there is only one file system but it is too full, work with your SA or storage to to add space or allocate a new file system, then modify the generated script accordingly.
This example assumes a traditional file system, on a UNIX-style OS, not using Oracle-Managed files.  ASM or RAW will have a different format for the data file location, of course.