How to create a new DataBase using Oracle 10g Express Edition???

Question

Hello, I am new to Oracle, I am used to Microsoft SQL Server (Enterprise Manager).
Here in Oracle I do not get how do I create a DataBase, and then create tables on it.
could anyone please explain to me how to do it?

Answer 1

A SQL Server database is roughly equivalent to an Oracle schema.
You should rarely need to create a new database. If you do need to create a database, get a 'for fee' edition of Oracle and use the dbca tool (Database Configuration Assistant) to do that. In fact, you are only allowed to have one XE database on the machine.
However, you can create as many schemas in an existing Oracle database as you need. (One schema, owned by userid SYS, is roughly equal to your 'master catalog'.)
You can create other schemas simply by
1) creating a userid that will own the schema (one designated for maintenance of the schema);
2) grant that userid appropriate privileges, such as 'CREATE TABLE', 'CREATE VIEW' as shown in the SQL Reference manual under the GRANT section;
3) provide that userid with a quota in one or more tablespaces (see the CREATE USER command in the SQL Reference manual);
4) create the objects, such as tabels, views, sequences, stored procs and functions, etc. (as in the SQL Reference manual);
5) create the users who will access the objects, and grant them the CREATE SESSION capability (as in the SQL Reference manual);
6) grant access (select, update, execute, etc.) on the schema objects to these users (as in the SQL Reference manual);
7) if desired, create synonyms on the schema objects so the users do not need to use fully qualified syntax such as "SELECT col FROM schema.table;" (as in the SQL Reference manual).
In case you are interested in looking at the SQL Reference manual, it can be found at http://www.oracle.com/pls/db102/portal.portal_db?selected=1 ;-)