Difference in Connection Strings for the same DB(Oracle 9i)

[michell rosvlet]

When I connect to Oracle 9i using Eclipse I use the connection string as follows

 Class.forName("oracle.jdbc.driver.OracleDriver");
	    con=DriverManager.getConnection(
	       	"jdbc:oracle:thin:@WIN-6DRGRVTEEUI:1521:ORCL",	    		  
	        "admin",
	        "passcode");   

And when using WSAD I use

  ORCL=
	    	  (DESCRIPTION=
	    	    (ADDRESS=
	    	      (PROTOCOL=TCP)
	    	      (HOST=WIN-6DRGRVTEEUI.home)
	    	      (PORT=1521)
	    	    )
	    	    (CONNECT_DATA=
	    	      (SERVER=dedicated)
	    	      (SERVICE_NAME=orcl)
	    	    )
	    	  )  

Why can't I connect using the First connection String in my WSAD?

[Fatih Keles]

First one is a jdbc string, second one is tnsnames entry string. I barely know nothing about WSAD but jdbc approach is the one that is common in java world. tnsnames support may be an implementation detail specific to vendor(IBM).

What difference does it make?

Regards,

Fatih.