HELP !!! - sql script to find free space in Oracle7,8,9 DB

Question

Hi All
I got a PL/SQL script to find out free space in Oracle7,8,9 db. But because in Oracle 7 there is no maxbytes column in dba_data_files, so this script is not working. I am trying to use cursor and putting sql in a variable so that when program executes, it does not see maxbytes. But it still does not work.
Please help. !!!
Script
set feedback off;
set serveroutput on;
set termout off;
set verify off;
spool /u01/app/oracle/admin/common/bck/log/ts.log
declare
v_tablespace_name varchar2(50);
v_total_space number(12) := 0;
v_free_space number(12);
v_space number(12);
v_space_used number(12);
v_pct_free number(6,3);
v_pct_threshold number(3) := 2;
v_table_exist number(2) := 0;
v_sql varchar2(300) := 'select sum(maxbytes) from dba_data_files where TABLESPACE_NAME = tablespace_rec.tablespace_name';
TYPE t_tableref IS REF CURSOR;
t_tablecur t_tableref;
begin
for tablespace_rec in (select tablespace_name from dba_tablespaces)
loop     
-- Get the total space for the current tablespace
-- if this FILEXT$ view exists then some of the datafiles have autoextend on;
          select count(*) into v_table_exist from dba_tables where table_name = 'FILEXT$';
          dbms_output.put_line('table count: ' || v_table_exist);               
          if v_table_exist = 0 then
                    OPEN t_tablecur for v_sql;
                    fetch t_tablecur into v_total_space;                         
                    CLOSE t_tablecur;     
          --     select sum(maxbytes) into v_total_space from dba_data_files
          --     where TABLESPACE_NAME = tablespace_rec.tablespace_name;               
          --      v_total_space := getMaxBytes(tablespace_rec.tablespace_name);
          end if;
          select sum(bytes) into v_space from dba_data_files
          where TABLESPACE_NAME = tablespace_rec.tablespace_name;          
     if (v_total_space = 0 or v_total_space < v_space) then
          select sum(bytes) into v_total_space from dba_data_files
          where TABLESPACE_NAME = tablespace_rec.tablespace_name;
          select sum(bytes) into v_free_space from dba_free_space
          where TABLESPACE_NAME = tablespace_rec.tablespace_name;
     else
          select sum(bytes) into v_free_space from dba_free_space
          where TABLESPACE_NAME = tablespace_rec.tablespace_name;
          v_space_used := v_space - v_free_space;
          v_free_space := v_total_space - v_space_used;          
     end if;
-- calculate the percent free for the current tablespace
v_pct_free := (v_free_space / v_total_space) * 100;
     if (v_pct_free < v_pct_threshold) then
     dbms_output.put_line(tablespace_rec.tablespace_name|| ' - Percent Free: ' || v_pct_free      
     ||'%');
     end if;
end loop;
end;
spool off;

Answer 1

Hi All
I got a PL/SQL script to find out free space in Oracle7,8,9 db. But because in Oracle 7 there is no maxbytes column in dba_data_files, so this script is not working. I am trying to use cursor and putting sql in a variable so that when program executes, it does not see maxbytes. But it still does not work.
Please help. !!!
Script
set feedback off;
set serveroutput on;
set termout off;
set verify off;
spool /u01/app/oracle/admin/common/bck/log/ts.log
declare
v_tablespace_name varchar2(50);
v_total_space number(12) := 0;
v_free_space number(12);
v_space number(12);
v_space_used number(12);
v_pct_free number(6,3);
v_pct_threshold number(3) := 2;
v_table_exist number(2) := 0;
v_sql varchar2(300) := 'select sum(maxbytes) from dba_data_files where TABLESPACE_NAME = tablespace_rec.tablespace_name';
TYPE t_tableref IS REF CURSOR;
t_tablecur t_tableref;
begin
for tablespace_rec in (select tablespace_name from dba_tablespaces)
loop     
-- Get the total space for the current tablespace
-- if this FILEXT$ view exists then some of the datafiles have autoextend on;
          select count(*) into v_table_exist from dba_tables where table_name = 'FILEXT$';
          dbms_output.put_line('table count: ' || v_table_exist);               
          if v_table_exist = 0 then
                    OPEN t_tablecur for v_sql;
                    fetch t_tablecur into v_total_space;                         
                    CLOSE t_tablecur;     
          --     select sum(maxbytes) into v_total_space from dba_data_files
          --     where TABLESPACE_NAME = tablespace_rec.tablespace_name;               
          --      v_total_space := getMaxBytes(tablespace_rec.tablespace_name);
          end if;
          select sum(bytes) into v_space from dba_data_files
          where TABLESPACE_NAME = tablespace_rec.tablespace_name;          
     if (v_total_space = 0 or v_total_space < v_space) then
          select sum(bytes) into v_total_space from dba_data_files
          where TABLESPACE_NAME = tablespace_rec.tablespace_name;
          select sum(bytes) into v_free_space from dba_free_space
          where TABLESPACE_NAME = tablespace_rec.tablespace_name;
     else
          select sum(bytes) into v_free_space from dba_free_space
          where TABLESPACE_NAME = tablespace_rec.tablespace_name;
          v_space_used := v_space - v_free_space;
          v_free_space := v_total_space - v_space_used;          
     end if;
-- calculate the percent free for the current tablespace
v_pct_free := (v_free_space / v_total_space) * 100;
     if (v_pct_free < v_pct_threshold) then
     dbms_output.put_line(tablespace_rec.tablespace_name|| ' - Percent Free: ' || v_pct_free      
     ||'%');
     end if;
end loop;
end;
spool off;