我一直在努力尝试这项工作。据我所知,我已经按照文档进行了操作,这只是不起作用。
你们中任何有Postgres经验的人都可以推荐修复吗?我会永远感激。
我使用的是版本1。1。1(2014年6月9日,rev:REL-1_18_1)
我的创建代码:
set search_path = PsychoProductions;
create or replace function fcn_insert_person(
-- person table
prm_role_id int,
prm_first_name text,
prm_last_name text,
prm_organization text,
prm_website text,
prm_default_billing_method_id text,
prm_active boolean,
-- address table
prm_address_type_id int,
prm_address text,
prm_city text,
prm_state text,
prm_zip_code text,
-- email table
prm_email_address text,
prm_email_type_id int,
-- phone table
prm_phone_number text,
prm_phone_type_id int
)
returns void as
$$
set search_patch = PsychoProductions;
insert into PsychoProductions.person (
role_id,
first_name,
last_name,
organization,
website,
default_billing_method_id,
active
)
values (
prm_role_id,
prm_first_name,
prm_last_name,
prm_organization,
prm_website,
prm_default_Billing_Method_ID,
prm_active
);
insert into PsychoProductions.address (
person_id,
address_type_id,
address,
city,
state,
zip_code
)
values (
( select currval('person_id_seq') ),
prm_address_type_id,
prm_address,
prm_city,
prm_state,
prm_zip_code
);
insert into email (
person_id,
email_address,
email_type_id
)
values (
( select currval('person_id_seq') ),
prm_email_address,
prm_email_type_id
);
insert into phone (
person_id,
phone_number,
phone_type_id
)
values (
( select currval('person_id_seq') ),
prm_phone_number,
prm_phone_type_id
);
-- end;
$$
language sql;
我的执行/通话代码:
set search_path = PsychoProductions;
select fcn_insert_person(
-- NOTE: DO NOT REMOVE QUOTATION MARKS
-- person table
3, -- customer
'firstname',
'lastname',
'organization',
'website',
2, -- net 30
True, -- active
-- address table
1, -- unique
'address',
'city',
'state',
'zip',
-- email table
'email',
1, -- business email
-- phone table
'phone',
1 -- mobile
);
错误:
ERROR: function fcn_insert_person(integer, unknown, unknown, unknown, unknown, integer, boolean, integer, unknown, unknown, unknown, unknown, unknown, integer, unknown, integer) does not exist
LINE 2: select fcn_insert_person(
^
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
********** Error **********
ERROR: function fcn_insert_person(integer, unknown, unknown, unknown, unknown, integer, boolean, integer, unknown, unknown, unknown, unknown, unknown, integer, unknown, integer) does not exist
SQL state: 42883
Hint: No function matches the given name and argument types. You might need to add explicit type casts.
Character: 45
答案 0 :(得分:3)
我有类似的情况 - 具有宽参数列表的功能。使用所谓的命名参数,您无需遵守参数顺序。代码更长,但(我希望)更具可读性和更强大。
CREATE TABLE tab(name text, surname text, address text, city text, zip text);
CREATE OR REPLACE FUNCTION public.fx(name text, surname text,
address text, city text, zip text)
RETURNS void
LANGUAGE plpgsql
AS $function$
BEGIN
INSERT INTO tab(name, surname, address, city, zip)
VALUES(fx.name, fx.surname, fx.address, fx.city, fx.zip);
-- ... some other logic
END;
$function$
可以使用命名参数表示法调用此函数:
SELECT fx(name := 'Pavel', surname := 'Stehule',
address := 'Skalice 12', city := 'Benesov', zip := '12');
注意:当我使用错误的类型时 - Postgres报告消息:
postgres=# SELECT fx(name := 'Pavel', surname := 'Stehule', address := 'Skalice 12', city := 'Benesov', zip := 12); ERROR: function fx(name := unknown, surname := unknown, address := unknown, city := unknown, zip := integer) does not exist LINE 1: SELECT fx(name := 'Pavel', surname := 'Stehule', ^ HINT: No function matches the given name and argument types. You might need to add explicit type casts.
该消息有效,但不干净。这是功能重载支持的代价。还有其他技巧,如何划分长参数列表,以及如何更舒适地找到这些问题。
Postgres支持自定义类型。你可以使用它:
CREATE TYPE person_type AS (name text, surname text);
CREATE TYPE address_type AS (address text, city text, zip text);
你可以写一个构造函数:
CREATE OR REPLACE FUNCTION public._person_type(name text, surname text)
RETURNS person_type
LANGUAGE plpgsql
AS $function$
DECLARE r person_type;
BEGIN
r.name = name;
r.surname = surname;
RETURN r;
END;
$function$
CREATE OR REPLACE FUNCTION public._address_type(address text, city text, zip text)
RETURNS address_type
LANGUAGE plpgsql
AS $function$ DECLARE r address_type;
BEGIN
r.address = address;
r.city = city;
r.zip = zip;
RETURN r;
END;
$function$
创建此系统需要一些工作,仅适用于长时间系统。另一方面,它降低了未来维护工作的成本。
CREATE OR REPLACE FUNCTION public.fx(p person_type, a address_type)
RETURNS void
LANGUAGE plpgsql
AS $function$
BEGIN
INSERT INTO tab(name, surname, address, city, zip)
VALUES(p.name, p.surname, a.address, a.city, a.zip);
-- ... some other logic
END;
$function$
现在,更多符号(符号组合)是可能的:
postgres=# SELECT fx(_person_type('Pavel','Stehule'),
postgres(# _address_type('Skalice 12','Benesov', '25601'));
fx
----
(1 row)
构造函数有助于错误本地化:
postgres=# SELECT fx(_person_type('Pavel','Stehule'), _address_type('Skalice 12','Benesov', 25601)); ERROR: function _address_type(unknown, unknown, integer) does not exist LINE 2: _address_type('Skalice 12','Benesov', 25601)); ^ HINT: No function matches the given name and argument types. You might need to add explicit type casts.
答案 1 :(得分:2)
函数调用中的参数类型与函数定义中的参数类型不匹配。特别是,prm_default_billing_method_id
应该是text
,但是你传递的是整数2。您可以使用'2'
,2::text
或cast(2 as text)
。
此外,在您的函数中,第26行有一个拼写错误:set search_patch
而不是set search_path
。