This page is used to store codes, protocols, and procedures for use by the Data Managers.

Babase Technical Information

These links are primarly of interest to the Babase support staff.

Programs

Protocols

Wiki Administration

User Management

Forgotten Babase Password

There is no way to recover a forgotten password -- the user's password must be reset to a new value.

To reset the password of the user foo to abcdef login to Babase as the administrator, babase_admin, and issue the following SQL command:

ALTER ROLE foo PASSWORD 'abcdef';

After changing a user's password please have the user login and change their password to a value known only to themself.

Adding a User to Babase

Users can be added to babase, as well as a schema created, and permissions set, by completing the following steps using a SSH client.

PGPASSWORD='*********' babase-user-add YOURADMINNAME USERNAME babase_readers

Adding an Admin User to Babase

Admin users can be added to babase, with no additional schema created, by completing the following steps using a SSH client.

PGPASSWORD='*********' babase-user-add -a YOURADMINNAME NEWADMINNAME

Changing a User's Role in Babase

To change the role of a babase user, use grant and revoke. For example, below we grant the babase_editors role to the user and revoke the babase_readers role from the user.

GRANT babase_editors to USERNAME;
REVOKE babase_readers from USERNAME;

Deleting a User from Babase


WARNING: The process described in this section deletes the user's personal schemas. Be sure to examine the tables in these schemas before deletion to be sure that nothing should be saved. A table may be transferred to another schema by the babase administrator with the following SQL command:

ALTER TABLE oldschema.sometable SET SCHEMA newschema;


Users can be deleted from babase, and their personal schemas deleted as well, by running the following command on papio using a SSH client:

babase-user-delete YOURADMINNAME USERNAME

The password requested is that of your administrative user name, the YOURADMINNAME.

Be sure to peruse the output as it not only displays all the tables and other database objects deleted but may also contain error messages and descriptions of why the operation failed. Lines containing error messages and further information are are prefixed with 'ERROR:' and 'DETAIL:'.

Errors are generally due to the user having explicit permissions to or ownership of objects that are not in their personal schema. These issues are resolved by connecting to the database in question (usually babase) as the database administrator and either using PPA's management features or directly issuing SQL commands. The SQL command to remove permissions from, say, a table is:

REVOKE ALL ON TABLE sometable FROM someuser;

If the database object in question is not a table then change the word TABLE in the above command to kind of object in question.

To reassign ownership of, say, a table to another user use the following SQL command:

AlTER TABLE sometable OWNER TO anotheruser;

Again, if the database object in question is not a table then change the word TABLE in the above command to kind of object in question.

Note that each user has a personal schema in each database, babase, babase_test, and babase_copy. The babase-user-delete command can succeed in deleting schemas from some databases and not others. If this occurs the command can be re-run once the situation which prevents schema deletion is rectified. In this case you may receive errors which say that schemas do not exist. These can be safely ignored.

Copying the Babase Schema

The babase-copy-babase-schema Unix program copies the entire babase schema, including data, table definitions, validation, and everything else, from one database to another. All existing data, table definitions, validation, etc is deleted from the babase schema in the target database. You must be logged in to papio and at the Unix prompt to run the program.

The following example copies the babase schema from the babase database to the babase_test database. The first database (babase) is the database to copy from, the second (babase_test) the database to copy into.

PGPASSWORD='*********' babase-copy-babase-schema YOURADMINNAME babase babase_test

The next example copies the babase scheme from the babase_test database to the babase_database. The program will not copy into the babase database unless the -f (force) flag is given.

PGPASSWORD='*********' babase-copy-babase-schema -f YOURADMINNAME babase_test babase

[YOU@papio ~]$ pg_dump --help

Killing a Process in PPA

After you have logged into the database as the administrator, select the babase database.

There is a tab along the top of the browser window with a button for Processes. Click this button.

You may have to click cancel on the process you are killing a couple of times. It will tell you that the function has failed, its just kidding!

DataManagement (last edited 2014-05-20 21:19:23 by NikiLearn)

Wiki content based upon work supported by the National Science Foundation under Grant Nos. 0323553 and 0323596. Any opinions, findings, conclusions or recommendations expressed in this material are those of the wiki contributor(s) and do not necessarily reflect the views of the National Science Foundation.