如何使用mysql中的存储过程输出参数？

Question

我有两张桌子说

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)
);

我将不得不创建一个存储过程来将数据插入到表中：'Details'

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

我怎样才能以以下格式“QW001”作为输出参数来实现 ID。 有人可以帮我纠正上述存储过程，因为我是新手。任何帮助表示赞赏。 蒂亚！

Answer 1

你需要像这样使用 LAST_INSERT_ID() ：

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