如何做一個函數從pl/sql中的表中返回行類型？

Question

我做了這個功能，但是當我執行它時會返回一個錯誤！

create or replace function get_accounts 
(Acc_id in Account1.account_id%Type) 
return account1%rowtype 
as 
l_cust_record account1%rowtype; 
begin 
select * into l_cust_record from account1 
where account_id=Acc_id; 
return(l_cust_record); 
end; 
/

Answer 1

甲骨文設置：

CREATE TABLE account1 (
account_id INT, 
name  VARCHAR2(20) 
); 

INSERT INTO account1 VALUES (1, 'Bob'); 

create or replace function get_accounts 
(Acc_id in Account1.account_id%Type) 
return account1%rowtype 
as 
l_cust_record account1%rowtype; 
begin 
select * into l_cust_record from account1 
where account_id=Acc_id; 
return(l_cust_record); 
end; 
/

PL/SQL塊：

DECLARE 
    r_acct ACCOUNT1%ROWTYPE; 
BEGIN 
    r_acct := get_accounts(1); 
    DBMS_OUTPUT.PUT_LINE(r_acct.name); 
END; 
/

輸出：

Bob 

Answer 2

要調用Oracle中的函數，您需要使用它的返回值。也就是說，你不能像過程那樣調用它。像這樣的東西會工作：

declare 
    myrow account1%rowtype; 
    account_id Account1.account_id%Type := <VALID ACCOUNT ID VALUE>; 
begin 
    myrow := Get_Accounts(account_id); 
end; 
/