Обсуждение: How to grant a privilege on all tables or views or both of a database to someone?
<p><font size="2">Is there a shortcut to grant a privilege on all tables or views or both of a database instead of once atable or view?</font><p><font size="2">Thanks in advance,</font><p><font size="2">Eric Du</font><br /><font size="2">-----------------------------------</font><br/><font size="2">Tel: (86-010) 65544068-309</font><br /><font size="2">Fax:(86-010) 65544066</font>
Re: How to grant a privilege on all tables or views or both of a database to someone?
От
"Paul Ogden"
Дата:
Here's what I did, using psql:
First you need to build the grant statements. This is done using select statements against pg_class ( system catalog that stores name along with other information about each table, view, sequence in your database ). The output is passed to a file with the \o command. The file will contain the GRANT statement for each object according to your search condition described in the WHERE clause. Run the new file at the psql prompt with the \i command and you are done. I saved both the psql command line script to build the grant statements and the resulting sql to grant relevant permission as system files that I can run any time I build or re-build a database.
Connect to your database using psql as the user who owns the objects which you want to grant permissions on. Be sure to set the appropriate permission level by using the correct keyword ( one of Select, Update, Insert, Delete or All ) after GRANT. Be sure you have write permissions to the local directory where you are saving the resulting file(s):
\t # -- turns of headings so the don't get in the file
\o /<local directory(ies)>/grants_tabtouser.sql
SELECT 'GRANT { SELECT | UPDATE | INSERT | DELETE | ALL } ON ' || relname || ' TO <username or keyword PUBLIC>;'
\o /<local directory(ies)>/grants_tabtouser.sql
SELECT 'GRANT { SELECT | UPDATE | INSERT | DELETE | ALL } ON ' || relname || ' TO <username or keyword PUBLIC>;'
FROM pg_class
WHERE relkind ='r' # -- use = 'v' for views and = 'S' for sequences or IN ( 'r','v','S' ) for all
WHERE relkind ='r' # -- use = 'v' for views and = 'S' for sequences or IN ( 'r','v','S' ) for all
AND relowner IN ( # -- remove this clause to generate grants on all objects. Must be superuser!
SELECT usesysid
FROM pg_user
WHERE usename = current_user )
\g # -- execute
\o # -- end output to file
\g # -- execute
\o # -- end output to file
\t # -- turns headings back on
then run the sql to issue the grants. Warning, you may wish to examine the grants_tabtouser.sql file first using your favorite editor. Alternatively, you could run the query in the first step without output to file turned on and examine the results on the screen:
\i /<local directory(ies)>/grants_tabtouser.sql
Paul Ogden
-----Original Message-----
From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org]On Behalf Of Eric Du
Sent: Thursday, March 07, 2002 02:38
To: pgsql-sql@postgresql.org
Subject: [SQL] How to grant a privilege on all tables or views or both of a database to someone?
Is there a shortcut to grant a privilege on all tables or views or both of a database instead of once a table or view?
Thanks in advance,
Eric Du
-----------------------------------
Tel: (86-010) 65544068-309
Fax: (86-010) 65544066
Re: How to grant a privilege on all tables or views or both of a database to someone?
От
"Andrew G. Hammond"
Дата:
On Thu, Mar 07, 2002 at 10:55:51AM -0800, Paul Ogden wrote:
> How to grant a privilege on all tables or views or both of a database to
> someone?Here's what I did, using psql:
Personally I solved this using plpgsql:
-- usage: SELECT grant_all('privilidge', 'user');
-- grants privilidge (SELECT, UPDATE, INSERT, DELETE or ALL) to the user
-- for all non-pg_ objects in the database (except indices).
DROP FUNCTION grant_all(text, text);
CREATE FUNCTION grant_all(text, text) RETURNS boolean AS '
DECLARE item RECORD; priv ALIAS FOR $1; user ALIAS FOR $2;
BEGIN FOR item IN SELECT * FROM pg_class WHERE relname !~ ''^pg_'' AND relkind <> ''i'' LOOP EXECUTE ''GRANT
''|| priv || '' ON '' || quote_ident(item.relname) || '' TO '' || quote_ident(user); END LOOP; RETURN ''t'';
END;' LANGUAGE 'plpgsql';
DROP FUNCTION grant_all_tables(text, text);
CREATE FUNCTION grant_all_tables(text, text) RETURNS boolean AS '
DECLARE item RECORD; priv ALIAS FOR $1; user ALIAS FOR $2;
BEGIN FOR item IN SELECT * FROM pg_class WHERE relname !~ ''^pg_'' AND relkind = ''r'' LOOP EXECUTE ''GRANT ''
||priv || '' ON '' || quote_ident(item.relname) || '' TO '' || quote_ident(user); END LOOP; RETURN ''t'';
END;' LANGUAGE 'plpgsql';
DROP FUNCTION grant_all_tables_and_views(text, text);
CREATE FUNCTION grant_all_tables_and_views(text, text) RETURNS boolean AS '
DECLARE item RECORD; priv ALIAS FOR $1; user ALIAS FOR $2;
BEGIN FOR item IN SELECT * FROM pg_class WHERE relname !~ ''^pg_'' AND relkind IN (''r'', ''v'') LOOP EXECUTE
''GRANT'' || priv || '' ON '' || quote_ident(item.relname) || '' TO '' || quote_ident(user); END LOOP; RETURN
''t'';
END;' LANGUAGE 'plpgsql';
--
Andrew G. Hammond mailto:drew@xyzzy.dhs.org http://xyzzy.dhs.org/~drew/
56 2A 54 EF 19 C0 3B 43 72 69 5B E3 69 5B A1 1F 613-389-5481
5CD3 62B0 254B DEB1 86E0 8959 093E F70A B457 84B1
"To blow recursion you must first blow recur" -- me
Re: How to grant a privilege on all tables or views or both of a database to someone?
От
"Paul Ogden"
Дата:
Andrew,
That's a nice solution. Was wondering if you think its feasible to do the
same, but as only one function with an additional parameter for relation
type ( table, view, sequence, all ).
Also, say I have tables owned by different users ( ie some tables owned by a
taskmanager process and others owned by web application ) and I only want to
issue grants on objects owned by one of these users?
Thanks,
Paul Ogden
-----Original Message-----
From: Andrew G. Hammond [mailto:drew@xyzzy.dhs.org]
Sent: Thursday, March 07, 2002 12:41
To: Paul Ogden
Cc: Eric Du; pgsql-sql@postgresql.org
Subject: Re: [SQL] How to grant a privilege on all tables or views or
both of a database to someone?
On Thu, Mar 07, 2002 at 10:55:51AM -0800, Paul Ogden wrote:
> How to grant a privilege on all tables or views or both of a database to
> someone?Here's what I did, using psql:
Personally I solved this using plpgsql:
-- usage: SELECT grant_all('privilidge', 'user');
-- grants privilidge (SELECT, UPDATE, INSERT, DELETE or ALL) to the user
-- for all non-pg_ objects in the database (except indices).
DROP FUNCTION grant_all(text, text);
CREATE FUNCTION grant_all(text, text) RETURNS boolean AS '
DECLARE item RECORD; priv ALIAS FOR $1; user ALIAS FOR $2;
BEGIN FOR item IN SELECT * FROM pg_class WHERE relname !~ ''^pg_'' AND relkind <> ''i'' LOOP EXECUTE ''GRANT ''
||priv || '' ON '' || quote_ident(item.relname) || '' TO '' || quote_ident(user); END LOOP; RETURN ''t'';
END;' LANGUAGE 'plpgsql';
DROP FUNCTION grant_all_tables(text, text);
CREATE FUNCTION grant_all_tables(text, text) RETURNS boolean AS '
DECLARE item RECORD; priv ALIAS FOR $1; user ALIAS FOR $2;
BEGIN FOR item IN SELECT * FROM pg_class WHERE relname !~ ''^pg_'' AND relkind = ''r'' LOOP EXECUTE ''GRANT '' ||
priv || '' ON '' || quote_ident(item.relname) || '' TO '' || quote_ident(user); END LOOP; RETURN ''t'';
END;' LANGUAGE 'plpgsql';
DROP FUNCTION grant_all_tables_and_views(text, text);
CREATE FUNCTION grant_all_tables_and_views(text, text) RETURNS boolean AS '
DECLARE item RECORD; priv ALIAS FOR $1; user ALIAS FOR $2;
BEGIN FOR item IN SELECT * FROM pg_class WHERE relname !~ ''^pg_'' AND relkind IN (''r'', ''v'') LOOP EXECUTE
''GRANT'' || priv || '' ON '' || quote_ident(item.relname) || '' TO '' || quote_ident(user); END LOOP; RETURN
''t'';
END;' LANGUAGE 'plpgsql';
--
Andrew G. Hammond mailto:drew@xyzzy.dhs.org http://xyzzy.dhs.org/~drew/
56 2A 54 EF 19 C0 3B 43 72 69 5B E3 69 5B A1 1F 613-389-5481
5CD3 62B0 254B DEB1 86E0 8959 093E F70A B457 84B1
"To blow recursion you must first blow recur" -- me