I am getting ORA-02063 error while copying bulk data from DBLINK

Question

Hi all ,
I am trying to copy data from DBlink ,whenever i am trying to pull more data ,The db link break down ,
I have try to put /*+ APPEND */  (Hint) in insert statement.Below is the insert code from my procedure
from where i am getting below error
"Error in copy_data_pkg-3113 ORA-03113: end-of-file on communication channel
ORA-02063: preceding line from TESTDBLINK"
Insert code:
INSERT /*+ APPEND */ INTO target_tab
select
col1,
col2,
col3,
col4,
col5,
o_time
FROM padmin.V_tab1@testdblink
    where
trunc (sysmodtime) = trunc(sysdate)-1
and O_time >= al_time
and (CLEAR_TIME is null or  CLEAR_TIME >= occur_time)
    and (res_code is null or (UPPER(res_code) not LIKE '%TEST TT%' and UPPER(res_code) not LIKE '%TEST SITE%'))
    and ((UPPER(BRIEF_DESC) not like '%TEST TT%' and UPPER(BRIEF_DESC) not LIKE '%TEST SITE%'))
    and (o_time+(330/(24*60))) <= trunc(SYSDATE)-1/24/60/60
    and  catvar IN('POS')
  and UPPER(action_var) not like '%SC_NET%' and UPPER(action) not like '%ROAM_NET%' and UPPER(action) not like '%PUP_NET%';
  COMMIT ;
Please suggest me ,why i am getting this error.

Answer 1

Can you elaborate the thing... I don't think  /*+ APPEND */ this is working for me ,still I am getting same error.
If you have any other suggestion,I would like to hear.
Should i not put commit after some 500 records inserted ? As i am putting commit once after whole data gets inserted.