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oracle-sql developer database connection problem

981742 Newbie
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hi all,

i tried creating a new connection in SQL developer but unable to create.

i tried with all the combinations such as

connection name:hr_orcl
username:hr
password:hr

connection tyrpe:basic,Role:default

hostname:localhost/ip address of my system

port:1521

SID:xe/orcl


But still it is hsowing as " network adapter could not establish the connection".

So could anybody please help me in this regard as to how to resolve this issue as I have searched several sites but could not find a solution for this.Waiting for your reply at the earliest

Thanks,
Rajesh P.
9949254433
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