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How do I REVOKE delete privileges in PostgreSQL?
Introduction to the PostgreSQL REVOKE statement
- First, specify the one or more privileges that you want to revoke. You use the ALL option to revoke all privileges.
- Second, specify the name of the table after the ON keyword.
- Third, specify the name of the role from which you want to revoke privileges.
How do I change privileges in PostgreSQL?
First, connect to your database cluster as the admin user, doadmin , by passing the cluster’s connection string to psql . This brings you into the interactive shell for PostgreSQL, which changes your command prompt to defaultdb=> . From here, connect to the database that you want to modify the user’s privileges on.
How do I check Postgres user privileges?
How to List PostgreSQL Users and Permission
- select pgu. usename as user_name,
- from pg_user pgu.
- order by pgu. usename;
How do I give permission to a Postgres user?
Here are some common statement to grant access to a PostgreSQL user:
- Grant CONNECT to the database:
- Grant USAGE on schema:
- Grant on all tables for DML statements: SELECT, INSERT, UPDATE, DELETE:
- Grant all privileges on all tables in the schema:
- Grant all privileges on all sequences in the schema:
How to revoke a privilege in PostgreSQL documentation?
To revoke a previously-granted privilege, use the fittingly named REVOKE command: Ordinarily, only the object’s owner (or a superuser) can grant or revoke privileges on an object. However, it is possible to grant a privilege “with grant option”, which gives the recipient the right to grant it in turn to others.
What happens when you try to revoke privileges on an object?
When a non-owner of an object attempts to REVOKE privileges on the object, the command will fail outright if the user has no privileges whatsoever on the object. As long as some privilege is available, the command will proceed, but it will revoke only those privileges for which the user has grant options.
How to grant privileges in PostgreSQL object type?
To assign privileges, the GRANT command is used. For example, if joe is an existing role, and accounts is an existing table, the privilege to update the table can be granted with: Writing ALL in place of a specific privilege grants all privileges that are relevant for the object type.
What happens if I revoke select from a user?
Similarly, revoking SELECT from a user might not prevent that user from using SELECT if PUBLIC or another membership role still has SELECT rights. If GRANT OPTION FOR is specified, only the grant option for the privilege is revoked, not the privilege itself. Otherwise, both the privilege and the grant option are revoked.