SQL> create tablespace test2
2 datafile 'F:\oracle92\oradata\sun\test2' size 10M
3 autoextend on next 20M maxsize 100M;
表空间已创建。
SQL> select FILE_NAME,TABLESPACE_NAME,AUTOEXTENSIBLE,MAXBYTES,INCREMENT_BY from dba_data_files where tablespace_name='TEST2';
FILE_NAME TABLESPACE_NAME AUTOEX MAXBYTES INCREMENT_BY
------------------------------ --------------- ------ ---------- ------------
F:\ORACLE92\ORADATA\SUN\TEST2 TEST2 YES 104857600 2560
SQL> show parameter db_block_size
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
db_block_size integer 8192
SQL> select 2560*8192/1024/1024 from dual;
2560*8192/1024/1024
-------------------
20