execute the following commands by using system account login oracle:
>sqlplus system/111111@localhost:1522/xe;
SQL*Plus: Release 12.1.0.1.0 Production on Tue Sep 22 20:16:29 2015
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production
SQL>
1.the below command to display the current size of tablespace
>select t.tablespace_name,round(SUM(bytes/(1024*1024)),0) ts_size from dba_tablespaces t,dba_data_files d where t.tablespace_name=d.tablespace_name group by t.tablespace_name;
TABLESPACE_NAME TS_SIZE
------------------------------ ----------
SYSAUX 680
UNDOTBS1 510
USERS 100
SYSTEM 600
SQL>
2.use the below command to display the path of tablespace that will be used in command to modify the size of tablespace.
>select file_name,tablespace_name from dba_data_files;
FILE_NAME TABLESPACE_NAME
--------------------------------------------------------------------------- -----------------------------------
/u01/app/oracle/oradata/XE/system.dbf SYSTEM
3.the last command is to expand the size of current tablespace.
> alter database datafile '/u01/app/oracle/oradata/XE/system.dbf' resize 5600M;
Database altered.
SQL>