plpgsql

Why do I always get the following error from Postgres? syntax error at or near "IF" I read PostgreSQL: Documentation: 8.3: Control Structures . First I tried to execute a difficult query (with subquery), but then I tried to execute a simple one like this: IF 2 <> 0 THEN select * from users; END IF; The error is still the same. What am I doing wrong? IF 2 <> 0 THEN select * from users; END IF; You cannot use PL/pgSQL statements outside plpgsql functions. And if this fragment is from plpgsql function, then it is nonsense too. You cannot directly return result of query like T-SQL does. CREATE OR

I want to execute some pgScript directly from the pgAdmin editor UI. FOR i IN 1..10 LOOP PRINT i; -- i will take on the values 1,2,3,4,5,6,7,8,9,10 within the loop END LOOP; But I always got [ERROR ] 1.0: syntax error, unexpected character I also tried to wrap the code with do$$...$$ , but does not solve the problem. Vivek S. apart from Clodoaldo Neto's Answer .You can try this also DO $$ BEGIN FOR i IN 1..10 LOOP RAISE NOTICE '%', i; -- i will take on the values 1,2,3,4,5,6,7,8,9,10 within the loop END LOOP; END $$ There is no PRINT command. Use raise notice instead. create function f()

I have to resort to raw SQL where the ORM is falling short (using Django 1.7). The problem is that most of the queries end up being 80-90% similar. I cannot figure out a robust & secure way to build queries without violating re-usability. Is string concatenation the only way out, i.e. build parameter-less query strings using if-else conditions, then safely include the parameters using prepared statements (to avoid SQL injection). I want to follow a simple approach for templating SQL for my project instead of re-inventing a mini ORM. For example, consider this query: SELECT id, name, team, rank

How can I use query result stored into a record type variable for another query within the same stored function? I use Postgres 9.4.4. With a table like this: create table test (id int, tags text[]); insert into test values (1,'{a,b,c}'), (2,'{c,d,e}'); I wrote a function (simplified) like below: CREATE OR REPLACE FUNCTION func(_tbl regclass) RETURNS TABLE (t TEXT[], e TEXT[]) LANGUAGE plpgsql AS $$ DECLARE t RECORD; c INT; BEGIN EXECUTE format('SELECT id, tags FROM %s', _tbl) INTO t; SELECT count(*) FROM t INTO c; RAISE NOTICE '% results', c; SELECT * FROM t; END $$; ... but didn't work:

I use emacs for editing my sql code. I work 99% of time on postgresql plpgsql code. All my files with extension .sql contain postgresql. I'm curious is there a way to set sql-highlight-postgres-keywords SQL highlighting default instead of ANSI SQL, because it's pretty annoying to switch mode every time I open a file. Mario F Usually in emacs, if you want to change the settings every time some mode is opened, you use a hook. Something similar to this should work: (add-to-list 'auto-mode-alist '("\\.psql$" . (lambda () (sql-mode) (sql-highlight-postgres-keywords)))) If you need to work with

I'm trying to fetch to values from a plpgsql function with 2 OUT paramenters but I have some problem. These are the functions: CREATE OR REPLACE FUNCTION get_test(OUT x text, OUT y text) AS $$ BEGIN x := 1; y := 2; END; $$ LANGUAGE plpgsql; ---------------------------------------------------------------- CREATE OR REPLACE FUNCTION get_test_read() RETURNS VOID AS $$ DECLARE xx text; yy text; BEGIN SELECT get_test() INTO xx, yy; RAISE INFO 'x: <%>', xx; RAISE INFO 'y: <%>', yy; END; $$ LANGUAGE plpgsql; The output of the command: select get_test_read(); INFO: x: <(1,2) INFO: y: <> get_test_read