4GB limitation questions

Question

Couple of questions regarding the 4GB limit:
Are indexes included in the 4GB?
How is the 4GB measured?
Is there a way to query the database to find out how close to the limit the database is? (preferably a simple SQL query, so that an application can warn about impending space limits on startup).
Thanks for any response.
-Darryl
(And please consider a version for Mac OS X)

Answer 1

Here is the procedure I use in my production, test and development systems.
Later, Dive / Fly / Ride / Sail Safe
-Rob
PROCEDURE p_FreeSpace(pTablespace_name IN VARCHAR2 DEFAULT NULL) IS
CURSOR tbs_cur IS
SELECT tablespace_name, SUM(bytes) bytes
FROM dba_data_files
WHERE (pTablespace_name IS NULL) OR ( pTablespace_name IS NOT NULL AND tablespace_name = upper(pTablespace_name))
GROUP BY tablespace_name;
--v_tot_space NUMBER := NULL;
v_used NUMBER := NULL;
v_free NUMBER := NULL;
v_tot_free NUMBER := NULL;
v_tot_used NUMBER := NULL;
v_max_free NUMBER := NULL;
pct_free NUMBER := NULL;
chunks NUMBER := NULL;
BEGIN
dbms_output.put_line('TABLESPACE ' || c.tab || ' Total Space Space Used Free_space Pct Free Max free_extent #free extents');
dbms_output.put_Line('----------------------------------------------------------------------------------------------------------------------------------');
FOR tbs_rec IN tbs_cur
LOOP
-- SELECT sum(bytes)
-- INTO v_used
-- FROM dba_segments
-- WHERE tablespace_name = tbs_rec.tablespace_name;
select sum(f.bytes)-sum(s.bytes)
into v_used
from dba_data_files f,
dba_free_space s
where s.tablespace_name = f.tablespace_name
and s.tablespace_name = tbs_rec.tablespace_name;
-- v_tot_used := v_tot_used + v_used;
SELECT sum(bytes), max(bytes), count(*)
INTO v_free, v_max_free, chunks
FROM dba_free_space
WHERE tablespace_name = tbs_rec.tablespace_name;
-- v_tot_free := v_tot_free + v_free;
pct_free := v_free / tbs_rec.bytes * 100;
dbms_output.put_line(rpad(tbs_rec.tablespace_name,15,' ') || c.tab ||
--to_char(v_tot_space,'9,999,999,999') || chr(9) ||
to_char(tbs_rec.bytes,'99,999,999,999') || c.tab ||
to_char(nvl(v_used,0),'99,999,999,999') || c.tab ||
to_char(v_free,'99,999,999,999') || c.tab ||
to_char(pct_free,'999.999') || c.tab ||
to_char(v_max_free,'999,999,999,999') ||
to_char(chunks,'999,999,999,999'));
END LOOP;
IF pTablespace_name IS NOT NULL THEN
p_datafiles(pTablespace_name);
END IF;
END p_FreeSpace;
inms_test> exec util.p_freespace
TABLESPACE Total Space Space Used Free_space Pct Free Max free_extent #free extents
------------------------------------------------------------------------------------------------------------------------CWMLITE 20,971,520 15,663,104 5,242,880 25.000 5,242,880 1
DATA 943,718,400 538,836,992 404,815,872 42.896 336,527,360 3
DRSYS 20,971,520 8,060,928 12,845,056 61.250 12,845,056 1
HIST_DATA 1,677,721,600 1,265,631,232 412,024,832 24.559 412,024,832 1
INDX 445,644,800 377,094,144 68,485,120 15.368 68,091,904 2
LOB_DATA 19,461,570,560 19,277,021,184 184,483,840 .948 184,483,840 1
SYSTEM 372,244,480 363,552,768 8,683,520 2.333 8,527,872 3
TOOLS 10,485,760 0 10,420,224 99.375 10,420,224 1
UNDOTBS 351,272,960 11,714,560 339,410,944 96.623 210,698,240 9
USERS 209,715,200 209,256,448 393,216 .188 393,216 1
PL/SQL procedure successfully completed.
Elapsed: 00:00:02.92
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