Connecting to the database taking long time to connect database server

Hi
When I execute procedure i am getting the below message at bottom of the Oracle SQL Developer
"Connecting to the database"
it is taking more than 10 min plz guide

Hi
have you installed a normal Oracle Client also on your Host? normal Oracle Client
Did you connect with host:port:sid or with a Oracle Naming Service? through TNS Service
Can you test tnsping <alias> yes, It is working fine
Did other user have the same problem? yes
Did you connect through WAN or LAN connection? LAN (Intranet)
Can you tell more about you client/database setup?
Database setup:
OS: Window 2008 server
version: 11.1.0
Client: 11.1.0
OS: Window 2008 server
Now I am not able to execute single select query which table contains 6 records and 15 columns it is taking long time I have waited 30 min still no resutls
only one table is behaving like this remaining is working fine
Edited by: user9235224 on Oct 6, 2012 7:06 PM

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| 0 | SELECT STATEMENT | | 544K| 30M| | 693K (20)|
| 1 | SORT ORDER BY | | 544K| 30M| 75M| 693K (20)|
|* 2 | HASH JOIN | | 544K| 30M| | 689K (20)|
|* 3 | TABLE ACCESS FULL | ACCOUNT | 20080 | 294K| | 6220 (18)|
|* 4 | HASH JOIN OUTER | | 131M| 5532M| 5155M| 678K (20)|
|* 5 | TABLE ACCESS FULL| ACCOUNT_HISTORY | 131M| 3646M| | 197K (25)|
| 6 | TABLE ACCESS FULL| INVOICE | 262M| 3758M| | 306K (18)|
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OPS$SVM_SRV4 I_ACCOUNT_HISTORY_ACCOUNT SEQNR ACCOUNT_HISTORY
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