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DO(7) PostgreSQL 9.5.0 Documentation DO(7)
DO - execute an anonymous code block
DO [ LANGUAGE lang_name ] code
DO executes an anonymous code block, or in other words a transient
anonymous function in a procedural language.
The code block is treated as though it were the body of a function with
no parameters, returning void. It is parsed and executed a single time.
The optional LANGUAGE clause can be written either before or after the
The procedural language code to be executed. This must be specified
as a string literal, just as in CREATE FUNCTION. Use of a
dollar-quoted literal is recommended.
The name of the procedural language the code is written in. If
omitted, the default is plpgsql.
The procedural language to be used must already have been installed
into the current database by means of CREATE LANGUAGE. plpgsql is
installed by default, but other languages are not.
The user must have USAGE privilege for the procedural language, or must
be a superuser if the language is untrusted. This is the same privilege
requirement as for creating a function in the language.
Grant all privileges on all views in schema public to role webuser:
DO $$DECLARE r record;
FOR r IN SELECT table_schema, table_name FROM information_schema.tables
WHERE table_type = 'VIEW' AND table_schema = 'public'
EXECUTE 'GRANT ALL ON ' || quote_ident(r.table_schema) || '.' || quote_ident(r.table_name) || ' TO webuser';
There is no DO statement in the SQL standard.
CREATE LANGUAGE (CREATE_LANGUAGE(7))
PostgreSQL 9.5.0 2016 DO(7)