如何使用mysql中的存儲過程輸出參數？

Question

我有兩個表說

表1：

create table Person(
    Id int primary key auto_increment, 
    name varchar(20), 
    Gender char(1) 
); 

表2：

create table Details(
    Age int, 
    Phone int(10) primary key, 
    Address varchar(100) 
    Id foreign key(Id) references Person(Id), 
    Name foreign key(Name) references Person(Name) 
); 

我將不得不創建一個存儲過程，將數據插入表： '詳細信息'

create procedure usp_insert(
    IN Name varchar(100), 
    IN Age int, 
    IN Phone int(10), 
    IN Address varchar(100), 
    OUT Id int 
) 
begin 

//want to output the Id as QW001 on inserting the data into the Details table. 

insert into Details(Name,Age,Phone,Address) values(name,age,phone,address) 
end 

我怎樣才能以下列格式'QW001'作爲ou實現Id輸入參數。 有人可以幫助我糾正上述存儲過程，因爲我是新手。任何幫助表示讚賞。 TYIA！

Answer 1

你需要使用LAST_INSERT_ID（）是這樣的：

create procedure usp_insert(
    IN Name varchar(100), 
    IN Age int, 
    IN Phone int(10), 
    IN Address varchar(100), 
    OUT Id int 
) 
begin 

insert into Details(Name,Age,Phone,Address) values(name,age,phone,address); 
set Id =CONCAT("QW00", LAST_INSERT_ID()) AS ConcatenatedString; 
end