plpgsql

I have to convert from lat and long to geom to use PostGIS. My problem, I have various tables from different locations and I want to pass the table as a parameter to the function. I'm trying this: CREATE or REPLACE FUNCTION convert_from_lon_lat(float,float,character varying) RETURNS integer AS $$ select id from $3 as vertices order by vertices.geom <-> ST_SetSrid(ST_MakePoint($1,$2),4326) LIMIT 1; $$ LANGUAGE SQL; but I get a syntax error. EDIT1: So I changed the previous code to this: CREATE or REPLACE FUNCTION convert_from_lon_lat(long float, lat float, _table character varying) RETURNS

For example: I have a VIEW called "view1" which contains 'name' and 'slno' columns, now i want it to be display using FUNCTION called "f1" as shown below: --Function create or replace function f1(viewname varchar) returns table (name varchar,slno integer) as $body$ begin return query select * from viewname; end; $body$ language plpgsql; This is dynamic SQL, so you need EXECUTE . RETURN QUERY EXECUTE format('SELECT * FROM %I', "name"); Separately, that's a weird thing to want to do. 来源： https://stackoverflow.com/questions/22753868/postgresql-how-to-pass-table-view-name-as-a-parameter-to

I have created the following function in Postgres 9.3.5: CREATE OR REPLACE FUNCTION get_result(val1 text, val2 text) RETURNS text AS $BODY $Declare result text; BEGIN select min(id) into result from table where id_used is null and id_type = val2; update table set id_used = 'Y', col1 = val1, id_used_date = now() where id_type = val2 and id = result; RETURN result; END; $BODY$ LANGUAGE plpgsql VOLATILE COST 100; When I run this function in a loop of over a 1000 or more records it just does freezing and just says "query is running". When I check my table nothing is being updated. When I run it

For example. --Assigning value to variable in function as a parameter. create or replace function f1(number int :=1) --This method is not working to me. or --Assigning values to variables at declaration section. declare number int :=1; -- Here i need to assign the value to number but its not working. name varchar :='xyz'; Here is how you can do it: create or replace function f1(my_number int default 1) or declare my_number int :=1; Look at declaration documentation Assign value, general note (about assign value to variable out of declaration section) The language PLpgSQL syntax have many ways

I have a function I created like this: create or replace function core.nrt_summary_by_param_id(int) returns table (reason_type_id int, reason_id int, descr varchar(256), num int, pct numeric, cause_rank int) as $$ begin return query with r3 as ( //A bunch of queries ) select r3.reason_type_id, r3.reason_id, r3.desc, r3.num, r3.pct, r3.cause_rank from r3; where r3.param_id = $1 return; end $$ language plpgsql; When I call the function like so: select nrt_summary_by_param_id(5); The results are like this: nrt_summary_by_param_id ---------------------------------------------------- (1,2001,"A",14

Is it possible to use something like this in Postgres? This is the example from PL/SQL what I want to do: PROCEDURE CREATE_PAYMENT(P_AMOUNT IN NUMBER, P_INVOICE_LIST IN SIMPLEARRAYTYPE, P_AMOUNT_LIST IN NUMBER_TABLE -- pass list of amounts . . .) s_chk_amnt NUMBER; invoice_list SIMPLEARRAYTYPE; amount_list NUMBER_TABLE; BEGIN -- check if amount list is null or contains zeros IF p_amount_list IS NOT NULL AND p_amount_list.COUNT <> 0 THEN FOR r IN p_amount_list.FIRST..p_amount_list.LAST LOOP s_chk_amnt := s_chk_amnt + p_amount_list(r); END LOOP; END IF; Can I declare a list of characters and

Can someone please let me know how to convert the below Oracle Code to Postgresql IF prodNum = 1 THEN DBMS_LOB.WRITEAPPEND(pkgFilterNode, LENGTH(pkgFilter_tab || '<PackageFilters isNewFormat="Y" > '||l_crlf), pkgFilter_tab || '<PackageFilters isNewFormat="Y" > '||l_crlf); END IF; Appreciate your time! It depends on a size of your large object. When your large objects are less about 500MB, then you don't need to use LOBs (PostgreSQL uses term LO), and you can use a text or varchar type - the work is similar like with varchar . After this size you should to use LO API. CREATE OR REPLACE FUNCTION