Question

how to create schema

Asked by: taaz

Need to create a schema in oracle and can someone give me syntax

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Asked On
2009-08-25 at 04:16:38ID24679407
Tags

oracle 11g

Topic

Oracle Database

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Answers

 

by: ravindran_eeePosted on 2009-08-25 at 04:18:56ID: 25176279

CREATE USER <username> IDENTIFIED BY <password>

 

by: ravindran_eeePosted on 2009-08-25 at 04:22:20ID: 25176302

The user who would execute the above command should have necessary rights (CREATE USER privilege)
Just creating a new user (or schema) will be useless without privileges. Because you cannot even login without CREATE SESSION granted!

Check the below link for different type of privileges you could grant to a user.
http://ss64.com/ora/grant_privs.html

It would be simpler to create a role, assign privileges to the role and grant the role for any user.

 

by: rrjegan17Posted on 2009-08-25 at 04:26:54ID: 25176322

CREATE SCHEMA AUTHORIZATION user_name

Note:

The schema name must be an existing Oracle username.

More info:
http://ss64.com/ora/schema_c.html

 

by: HopDBAPosted on 2009-08-25 at 04:31:05ID: 25176342

CREATE USER <USERNAME> IDENTIFIED BY <PASSWORD> GRANT CONNECT TO <USERNAME>

as stated earlier you will need to have the system privs to create users and make the grants
GRANT CONNECT is assumed to be your role that has the CREATE SESSION system privilege so that the user can actually login and get onto the database, you will also need to add grants for the user to be abel to select from tables, create tables, etc.

 

by: taazPosted on 2009-08-25 at 05:04:47ID: 25176567

also as I have to import a data in the cust schema do I have to create tables indexes etc in this cust schema?

 

by: ravindran_eeePosted on 2009-08-25 at 05:06:27ID: 25176584

If you are going to use imp or impdb, then you don't have to.

If you are going to use INSERT statements or SQL Loader, then you will have to create them manually

 

by: taazPosted on 2009-08-25 at 05:08:08ID: 25176595

so can you give me the syntax to create cust schema in a database eurob?
greatly appreciate

 

by: ravindran_eeePosted on 2009-08-25 at 05:11:42ID: 25176625

I don't understand.. You need to login to the database (eurob in your case) and issue the CREATE USER statement to create the user. After that grant necessay privileges. If you have a dump file (.dmp) then make use of imp or impdb to import it.

Out of the above steps, for which and all do you need syntax? CREATE USER and grant privilege syntax are already provided.

 

by: mrjoltcolaPosted on 2009-08-25 at 05:30:20ID: 25176764

If you take a full export, the DDL will be in the export file. In order to retrieve the DDL you can use the SHOW=Y LOG=ddl.txt parameter to import, or the SQLFILE=dll.txt parameter to impdp

Example with imp:

  imp system/admin file=exp.dmp show=y log=ddl.txt rows=n full=y

 

by: it-rexPosted on 2009-08-25 at 07:24:06ID: 25177906

Taaz
a schema and a suers are exactly the same thing
if you create a schema then you have created a user and if you create a user you have created a schema;
this command

CREATE USER taaz
  IDENTIFIED BY taaz
  DEFAULT TABLESPACE users
  TEMPORARY TABLESPACE <your temp file>
  PROFILE DEFAULT
  ACCOUNT UNLOCK;


will create a user /schema called tazz we will refer to it as a user if we are talking about privilage issues who is the owner like fro tables in dba_tables;or dba_objects.

and we will refer to it as a schema if we are talking about the logical container that hold the tables,indexes ,views the user tazz has .

20120131-EE-VQP-002

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