ORA-02063: preceding line from

I am getting these errors every(Daily 5 to 10 times ) now and then .The orders table ,I am calling from another database through a DB link FM.DVT .After 5 mins everything works normal .

SQL> select orderno FROM ORDERS where rownum <2;
select orderno FROM ORDERS where rownum <2
*
ERROR at line 1:
ORA-12570: TNS:packet reader failure
ORA-02063: preceding line from FM.DVT


SQL> select orderno FROM ORDERS where rownum <2;
select orderno FROM ORDERS where rownum <2
*
ERROR at line 1:
ORA-02051: another session in same transaction failed
ORA-02063: preceding line from FM.DVT

Can you turn on tracing and re-execute the statement.

there may be many reasons,
a network issue while sending and receiving packets.......
client could be behind the firewall.......
are you sure the local and remote run the same versions and installed patches...........
check for bugs in the versions.......

.....................:cool: