ORA-25153: Temporary Tablespace is Empty

Today, I learned Temporary Table, I encountered for  ORA-25153: Temporary Tablespace is Empty

 

Following Step:

 

   1.create global temporary table tt(id number,name varchar2(10));

 

   2.insert into tt values(1,'lsh');

 

   ORA-25153: Temporary Tablespace is Empty

 

   3.I check the temp tablespace of the current user,find there are no  tempfiles

 

      select username,default_tablespace,temporary_tablespace from dba_users
       where username='HR';

 

       USERNAME   DEFAULT_TABLESPACE  TEMPORARY_TABLESPACE
--------------------------------------------------------------------------------------
        HR                        USERS                    TEMP

        

        select file_name,tablespace_name from dba_temp_files;

        no rows

 

   4.alter tablespace temp add temp file '/u01/oradata/lsh/temp02.dbf' size 100m;

  

   5.select file_name,tablespace_name from dba_temp_files;

 

     FILE_NAME            TABLESPACE_NAME
     ----------------------------
     /u01/oradata/lsh/temp02.dbf  TEMP

   6.insert into tt values(1,'lsh');

   7.select * from tt;