How to create a new Oracle user (new schema)

Create a new user in Oracle, and create a new schema to distinguish other directories. At the same time, it also saves data objects of all related users and tables of users.

Create a new user in Oracle, and create a new schema to distinguish other directories. At the same time, it also saves data objects of all related users and tables of users.

Create a new user in Oracle, and create a new schema to distinguish other directories. At the same time, it also saves data objects of all related users and tables of users.

How to create a new user? (Create a new db)

First, use the system (default password is manager) user to log on to the database.

The statement create user creates a user.
In the most simple form, the create user statement is one of the following three:

The first one creates a local user, the second one creates an external user while the last one creates global user.

How to create locked users?

A user can be created locked, that is, the user cannot connect to the database.

SQL> create user alfredo identified by passw0rd account lock;

The user is now created, he can be granted some rights, for example the right to connect to the database:

Now, if the user tries to connect to the database, he will get ORA-28000:

The user can now be unlocked with an alter user statement:

Which allows Alfredo to log on to the database now:

Connected.

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