我已经编写了一个pgsql函数,如下所示。如何摆脱$ 1,$ 2等,并用真实的参数名称替换它们,以使函数代码更具可读性?
此致
彼得
CREATE OR REPLACE FUNCTION InsertUser (
UserID UUID,
FirstName CHAR(10),
Surname VARCHAR(75),
Email VARCHAR(75)
)
RETURNS void
AS
$$
INSERT INTO "User" (userid,firstname,surname,email)
VALUES ($1,$2,$3,$4)
$$
LANGUAGE SQL;
答案 0 :(得分:2)
您必须在声明区域使用它之前声明它。例如:
DECLARE
v_UserID alias for $1;
v_FirstName alias for $2;
v_Surname alias for $3;
v_Email alias for $4;
BEGIN
$$
END
答案 1 :(得分:1)
尝试这件事
CREATE or replace FUNCTION delhi(nam varchar, mm numeric , nn numeric ) RETURNS integer
AS $$
begin
insert into exe ( name , m1 ,m2 ) values ( nam, mm , nn );
-- see here column name is not like function argument name , so that it wont say error
return 1;
end ;
$$
LANGUAGE plpgsql;
函数调用:
select delhi ( 'first value', 2,3 ) ;