Database 10 g Express Edition and Oracle 10 g install

I have Oracle 10 g client on my desktop and it connects to a server Oracle 10g on a database server by using a tnsnames.ora file. I feel that to run Oracle directs that a client server and database is required. Is this correct? What is the database 10g Express Edition? It is the client, the database server, or both? How should I use the tnsnames.ora file? If it is a database server where the tables are stored? Please help me I'm confused. Thank you.

Este

>
I have Oracle 10 g client on my desktop and it connects to a server Oracle 10g on a database server by using a tnsnames.ora file. I feel that to run Oracle directs that a client server and database is required. Is this correct?
>

Not necessarily; in fact, you can run the Oracle database commands using pass (local) connections. You would of course be connected to the operating system where it is installed your Oracle database to establish local connections without using tnsnames.

>
What is the database 10g Express Edition? It is the client, the database server, or both? How should I use the tnsnames.ora file?
>

Oracle Database XE is a database server. Client software must be installed on client systems for remote access to Oracle Database 10g Express Edition. You need not install the client on the same computer as Oracle Database 10 g Express Edition.

>
If it is a database server where the tables are stored? Please help me I'm confused. Thank you.
>

The tables are logical structures that are in your data files; the data files are physically stored on the operating system on which the Oracle database server is installed.

Kind regards
Phiri

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