How to set CONNECT_DATA with SID in oracle for tnsnames.ora file

tnsnames.ora CONNECT_DATA SID



anuj2 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.210)(PORT = 1521))
)
(CONNECT_DATA =
(SID = anujdb)
)
)



anuj3 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.210)(PORT = 1521))
)
(CONNECT_DATA =
(ORACLE_SID = anujdb)
)
)


oracle@novagenesis$ tnsping anuj2

TNS Ping Utility for Linux: Version 10.2.0.3.0 - Production on 04-APR-2011 11:31:19

Copyright (c) 1997, 2006, Oracle. All rights reserved.

Used parameter files:
/aptus/oracle/product/10g/network/admin/sqlnet.ora

Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.2.210)(PORT = 1521))) (CONNECT_DATA = (SID = anujdb)))
OK (0 msec)


SQL> connect scott/tiger@anuj2
Connected.
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Production
With the Partitioning, OLAP and Data Mining options