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Regading terminology Schema & User

Vivek Alampally
Ranch Hand

Joined: Jul 10, 2008
Posts: 67

I wish to know the difference between schema & user. What I know is, if a user is created, the schema -where in all the database objects are stored - is automatically created. My actual question is can a user be able to create multiple schemas? I know he can be given respective privileges to access other user' s schemas.
I feel answer for this question varies with different DBMS's. So please mention the DBMS which you are referring to, along with SQL statements

Jeanne Boyarsky
author & internet detective

Joined: May 26, 2003
Posts: 32635

In Oracle, you need a user for each schema.

Since you asking about other databases, I'm going to move this from Oracle to JDBC. That way other databases can be discussed too.

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sowmy raj

Joined: Jan 30, 2009
Posts: 4
Barring the case of enterprise users, where users are defined outside the database and then multiple users can be assigned to a particular schema, the relationship between users and schemas is 1:1. A schema is the set of objects owned by a database user. A single database user, by definition, cannot own objects in different schemas.
I agree. Here's the link:
subject: Regading terminology Schema & User
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