I want to test the translate function out:
CREATE OR REPLACE FUNCTION FUNCTION1 RETURN VARCHAR2 AS
BEGIN
TRANSLATE('222tech', '2ec', '3it');
RETURN NULL;
END FUNCTION1;
But in sql developer it doesn't seem to work right, it returns:
Error(4,1): PLS-00221: 'TRANSLATE' is not a procedure or is undefined
Related
Trying to create my first PostgreSQL function, I don't understand why I can't call this function.
CREATE FUNCTION public."SampledImpCountToOriginal"(IN integer)
RETURNS numeric
LANGUAGE 'plpgsql'
AS $BODY$
BEGIN
RETURN CASE WHEN $1 > 4 THEN EXP(POW($1 - 1.88, 1/2.3)) ELSE $1 END;
END;
$BODY$;
SELECT SampledImpCountToOriginal(5)
ERROR: function sampledimpcounttooriginal(integer) does not exist
LINE 1: SELECT SampledImpCountToOriginal(5)
^ HINT: No function matches the given name and argument types. You might need to add explicit type casts. SQL state:
42883 Character: 8
Calling from the same database I created it in, tried changing owner, can't figure it out. The function is listed in pgAdmin as SampledImpCountToOriginal(IN integer).
You have to call like this - SELECT "SampledImpCountToOriginal"(5)
When ever you use Double Quotes "" to create Function, you have to use in calling process. like -
SELECT public."SampledImpCountToOriginal"(
<integer>
)
If you don't use double quotes "" to calling your created function with "". it consider different function.
SELECT public.sampledimpcounttooriginal(
<integer>
)
Right now, we are migrating a stored procedure from SQL Server to Postgres.
We have a procedure which does some write operations and after that It will call a list function to list all the data currently existing.
create or replace procedure public.tree_create()
language plpgsql
as
$$
BEGIN
/* Insertion code goes here. */
/* return result. */
select * from public.tree_list();
END;
$$;
This will throw error
[42601] ERROR: query has no destination for result data Hint: If you want to discard the results of a SELECT, use PERFORM instead. Where: PL/pgSQL function public.tree_create() line 4 at SQL statement
So how can we return data by calling the function. FYI: The function is working fine and when we call it using select * from list_tree() It will returns the data.
So how exactly can we call FUNCTION inside STORED PROCEDURE to return results? Or is there any other methods to follow?
Procedures aren't meant to return results. You need to convert it into a function:
create or replace function public.tree_create()
returns table (... same signature as tree_list() ...)
language plpgsql
as
$$
BEGIN
/* Insertion code goes here. */
return query
select * from public.tree_list();
END;
$$;
Then use it like this:
select *
from tree_create();
I have to create a update procedure, so i created a function and given only below query
CREATE FUNCTION public.testf()
RETURNS boolean
LANGUAGE 'plpgsql'
AS $BODY$begin
update tt pp
set status = 'Ok'
return true;
end;$BODY$;
ALTER FUNCTION public.testf()
OWNER TO postgres;
returns error
ERROR: syntax error at or near "UPDATE" LINE 5: AS $BODY$UPDATE
return type I have given is int4range
What I am doing wrong
Please help
THanks
Pulling out my crystal ball, I see:
You created the function with LANGUAGE plpgsql.
You didn't surround the function body with BEGIN ... END;.
If your function is just a single SQL statement, use LANGUAGE sql.
Else, use the block-centered PL/pgSQL syntax properly.
You are missing an ; to end the UPDATE statement.
CREATE FUNCTION public.testf()
RETURNS boolean
LANGUAGE plpgsql
AS $BODY$
begin
update tt pp
set status = 'Ok'; --<< here
return true;
end;
$BODY$;
I'm trying to learn PL/pgSQL by writing some simple programs. To learn about FOREACH loop, I wrote the following:
CREATE OR REPLACE FUNCTION test(int[]) RETURNS void AS $$
DECLARE
window INT;
BEGIN
FOREACH window IN ARRAY $1
LOOP
EXECUTE 'SELECT $1' USING window;
END LOOP;
$$ LANGUAGE plpgsql;
SELECT test(ARRAY [30,60]);
I expect that this code snippet would first print 30 and then 60. However, I get the following error.
psql:loop.sql:11: ERROR: syntax error at end of input
LINE 7: EXECUTE 'SELECT $1' USING window;
^
psql:loop.sql:13: ERROR: function test(integer[]) does not exist
LINE 1: SELECT test(ARRAY [30,60]);
^
HINT: No function matches the given name and argument types. You might need
to add explicit type casts.
So the function definition has a syntax error, but I don't understand what the error is and how to fix it. I'd appreciate any help. Thanks!
Your function is declared as returns void so you can't return anything from it. If you want to return multiple values, you need to use returns setof integer
But it has more problems than that.
you should give your parameter a name (not an error, but good coding style)
to return a value from a function you need to use return. To return multiple values (because of returns setof) you need to use return next
there is no need for a dynamic SQL to return a value, you can return the variable directly.
Also not not an error, but: window is a keyword, I wouldn't use a variable with that name.
Applying all that, your function should look like this:
CREATE OR REPLACE FUNCTION test(p_input int[])
RETURNS setof integer
as
$$
DECLARE
l_value INT;
BEGIN
FOREACH l_value IN ARRAY p_input
LOOP
return next l_value;
END LOOP;
end;
$$
LANGUAGE plpgsql;
I am not sure if you are aware, but there is already a built-in function which achieves the same thing: unnest().
I have a function and I need to do different select based on inputid. so I have added the condition as below.
....
begin
IF(iv_binrocess = 1 AND IsNull(iv_binno,'') != '') THEN
...//some process here
END If;
...
End
When I run the function, I got the error "
ERROR: syntax error at or near "IF"
I referred many sites and tutorials, nothing helped me.
Can anyone help me to fix this issue?
Thanks
WAG, since you deleted most of the important information: You're trying to create a function with a PL/pgsql body, but declaring it SQL.
craig=> CREATE FUNCTION test() RETURNS void LANGUAGE sql AS
$$ BEGIN IF TRUE THEN PERFORM 1; END IF; END; $$ ;
ERROR: syntax error at or near "IF"
LINE 1: ...TION test() RETURNS void LANGUAGE sql AS $$ BEGIN IF TRUE TH...
Declare PL/PgSQL functions as LANGUAGE plpgsql.
If you instead want to use an SQL function, use a CASE expression instead of IF.
CREATE FUNCTION test2() RETURNS integer LANGUAGE sql
AS $$ SELECT CASE WHEN TRUE THEN 1 ELSE 0 END; $$;
(Note, I haven't bothered to format these readably. Don't write functions all in one line like this in real code.)