How to see the tablespace size

Question

hi
how to get the tablespace size??
thx

Answer 1

Hello,
select SUM(bytes)/1024/1024 MB from dba_data_files
where tablespace_name = 'xxxxxx';
works fine.
I am trying to build a function for that:
select SUM(bytes)/1024/1024 MB
from dba_data_files
where tablespace_name=upper('&user')
However, I need to make some enhancements:
1. how to make comments in sql files?Refer to the REM statement in the sqlplus reference manual
2. a lot of outputs are generated:
SQL> @get_size
Enter value for user: tts1
old 3: where tablespace_name=upper('&user')
new 3: where tablespace_name=upper('tts1')
MB
2048
how to avoid that so that only the size is
displayed.
for example:
SQL> @get_size
Enter value for user: tts1
MB
2048
Refer to set verify off in the sqlplus reference manual.
>
3. how to let the function accept a parameter such
as:
SQL> @get_size tts1
Refer to the define command in the sqlplus reference manual.
>
4. how to include a usage (help) to that function
such as:
SQL> @get_size
usage: get_size <tablespace name>
Many thanksRefer to the prompt statement in the sqlplus reference manual.
Sybrand Bakker
Senior Oracle DBA