Using a dynamically assigned variable in a procedure ?

Question

Hello every one ..
I had a small problem in writing a query..
Actually i had requirement of creating a tablespace  using a procedure
My procedure is :
create or replace procedure datafile_test as
df_location varchar2(600);
begin
select distinct substr(file_name,1,instr(file_name,'/',-1)) into df_location from dba_data_files;
dbms_output.put_line(' Created data file location is' ||df_location);
end;
This procedure is working alright but now my requirement is to use that value stored in df_location variable in
create tablespace my_tbs <df_location>/tbs.dbf size 20m;  // i need to write this statement in my procedure .. how can i bring df_location value in my query
is it possible to do it ?
thanks in advance..

Answer 1

Hello vinay raj
Ok, your original statement was not right and I have not checked it
Try this one, it should work:
create or replace procedure datafile_test
as
   df_location    varchar2(600);
    v_statement    VARCHAR2(4000);
begin
    select distinct substr(file_name,1,instr(file_name,'/',-1)) into df_location from dba_data_files;
    v_statement := 'CREATE TABLESPACE MY_TBS DATAFILE ' || CHR(39) || df_location || '/tbs.dbf' || CHR(39) || ' SIZE 20M '
       --- This is optional, but I use this:  
                || 'AUTOEXTEND OFF LOGGING ONLINE PERMANENT EXTENT MANAGEMENT LOCAL AUTOALLOCATE BLOCKSIZE 8K SEGMENT SPACE MANAGEMENT AUTO FLASHBACK ON'
    EXECUTE IMMEDIATE v_statement;
    dbms_output.put_line('Tablespace is created: "' || v_statement || '"'));
end;
I hope it helps you!