tablespace oracle

1SELECT DISTINCT TABLESPACE_NAME FROM DBA_EXTENTS ORDER BY TABLESPACE_NAME;
2
3SELECT TABLESPACE_NAME,
4       sum(BYTES / 1024 / 1024) AS MB
5FROM DBA_DATA_FILES GROUP BY TABLESPACE_NAME;

1-- Size and usage of tablespaces
2SELECT T1.TABLESPACE_NAME,
3       T1.BYTES / 1024 / 1024   as                        "bytes_used (Mb)",
4       T2.BYTES / 1024 / 1024   as                        "bytes_free (Mb)",
5       T2.largest / 1024 / 1024 as                        "largest (Mb)",
6       round(((T1.BYTES - T2.BYTES) / T1.BYTES) * 100, 2) percent_used
7FROM (
8         select TABLESPACE_NAME,
9                sum(BYTES) BYTES
10         from dba_data_files
11         group by TABLESPACE_NAME
12     ) T1,
13     (
14         select TABLESPACE_NAME,
15                sum(BYTES) BYTES,
16                max(BYTES) largest
17         from dba_free_space
18         group by TABLESPACE_NAME
19     ) T2
20where T1.TABLESPACE_NAME = T2.TABLESPACE_NAME
21order by ((T1.BYTES - T2.BYTES) / T1.BYTES) desc;

1SELECT e.OWNER, e.SEGMENT_NAME, e.TABLESPACE_NAME, sum(e.bytes) / 1048576 AS Megs
2FROM dba_extents e
3WHERE
4  e.OWNER = 'MY_USER' AND
5  e.TABLESPACE_NAME = 'MY_TABLESPACE'
6GROUP BY e.OWNER, e.SEGMENT_NAME, e.TABLESPACE_NAME
7ORDER BY e.TABLESPACE_NAME, e.SEGMENT_NAME;

1CREATE TABLESPACE
2TBS_NOME_TABLESPACE
3DATAFILE 'NOME_DATAFILE.dbf' SIZE 40M ONLINE;

1CREATE TABLE TB_NOME_TABELA
2(
3CODIGO NUMBER(38)
4)TABLESPACE TBS_NOME_TABLESPACE;