Oracle vocabulary, what is the mysql/SQL Server equivalent of a database

I need some help with vocabulary, I don't use Oracle that often but I am familiar开发者_开发问答 with MySQL and SQL Server.

I have an application I need to upgrade and migrate, and part of the procedure to do that involves exporting to an XML file, allowing the installer to create new database tables, then import to the new database tables from the XML file.

In Oracle, my database connection specifies a username, password, and an SID.

Let's call the SID, "COMPANY-APPS". This SID contains tables belonging to several applications, each of which connects with a different user ( "WIKIUSER", "BUGUSER", "TIMETRACKERUSER" ).

My question is: Can I re-use the same user to create the new tables ( with the same names ).

In MySQL or SQL Server, I would create a new database and grant my user privileges to create tables in it.

OR, do I need to create a new database user for my upgraded tables?

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The word you are looking for is Schema in Oracle. When you create a user they have a schema associated with them, so if I created the user 'Tim' and a table called 'data' then it can be found globally (in that database) as Tim.data