存储过程在SQL Management Studio中运行，但不在代码中运行

本文关键字：运行 代码 SQL Studio 存储过程 Management | 更新日期: 2023-09-27 18:25:35

我在两个表中输入和更新数据，用SP创建查询。在SQl服务器中工作可以，但在C#中查询表单会产生错误。

以下是我的表格定义：

CREATE TABLE [dbo].[nationality](
    [nationalitycode] [int] IDENTITY(1,1) NOT NULL,
    [nationality] [nvarchar](50) NULL,
        CONSTRAINT [PK_nationality] PRIMARY KEY CLUSTERED 
(
    [nationalitycode] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
/****** Object:  Table [dbo].[user]   
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-------------------------------------------------------------------------------------------
CREATE TABLE [dbo].[user](
    [code] [int] IDENTITY(1,1) NOT NULL,
    [name] [nvarchar](50) NULL,
    [lastname] [nvarchar](50) NULL,
    [nationalitycode] [int] NULL,
        CONSTRAINT [PK_user] PRIMARY KEY CLUSTERED 
(
    [code] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO

当我运行以下代码来编辑我得到的数据时：

Sqlexception未处理过程或函数"sp_update"应为参数"@lastName"，但未提供该参数。

private void btnRec_Click(object sender, EventArgs e)
{
   SqlCommand cmd = new SqlCommand("", cn);
   cmd.CommandType = CommandType.StoredProcedure;
   cn.Open();
   int fila = 0;
   switch (menup)
   {
      case menu.New:
         cmd.CommandText = "sp_insertdata";
         cmd.Parameters.AddWithValue("code", 0);
         cmd.Parameters.AddWithValue("name", txtName.Text);
         cmd.Parameters.AddWithValue("lastName", txtlastName.Text);
         cmd.Parameters.AddWithValue("nationality", txtNationality.Text);
         cmd.Parameters["code"].Direction = ParameterDirection.Output;
         fila = cmd.ExecuteNonQuery();
         if (fila!=0)
         {
             MessageBox.Show("Good Registry" +      cmd.Parameters["code"].Value.ToString());
         }
         break;

这是我的编辑代码：

case menu.Edit:
   cmd.CommandText = "sp_update";
    cmd.Parameters.AddWithValue("code", txtCode.Text);
    cmd.Parameters.AddWithValue("name", txtName.Text);
    cmd.Parameters.AddWithValue("lastname", txtLastName.Text);
    cmd.Parameters.AddWithValue("nationality", txtNationality.Text);
    fila = cmd.ExecuteNonQuery();
    if (fila!=0)
    {
       MessageBox.Show("Update ok" +  cmd.Parameters["code"].Value.ToString());
    }
    break;

当我运行编辑代码时，我得到：

Sqlexception未处理过程或函数"sp_update"应为参数"@lastName"，但未提供该参数。

以下是存储过程的定义：

ALTER proc [dbo].[sp_insertdata]
@name nvarchar(50),
@lastname nvarchar(50),
@nationality nvarchar(50)
as
if  not exists(select * from nationality where nationality=@nationality)
begin
insert into nationality(nationality)values(@nationality)
end
declare @id int
select @id=nationalitycode from nationality where nationality=@nationality
insert into usuario(name,lastname,nationalitycode) values (@name,@lastname,@id)

/******************em>*******/

ALTER proc [dbo].[sp_update]
@code int,
@name varchar(50),
@lastname varchar(50),
@nationality varchar(50)
as
if not exists (select * from nationality where nationality=@nationality)
begin
insert  into nationality(nationality)values(@nationality)
end
update user
SET  name= @name,lastname=@lastname,nationalitycode=(select nationalitycode from nationality where nationality=@nationality)
where code = @code

存储过程在SQL Management Studio中运行，但不在代码中运行

您的插入存储过程和插入代码中存在问题。存储过程没有用于代码的参数，但您将其作为输入进行传递。你的代码应该是：

case menu.New:
    cmd.CommandText = "sp_insertdata";
    cmd.Parameters.AddWithValue("@name", txtName.Text);
    cmd.Parameters.AddWithValue("@lastName", txtlastName.Text);
    cmd.Parameters.AddWithValue("@nationality", txtNationality.Text);
    cmd.Parameters["code"].Direction = ParameterDirection.Output;
    fila = cmd.ExecuteNonQuery();

Insert存储过程应包括作为输出的代码：

ALTER proc [dbo].[sp_insertdata]
   @name nvarchar(50),
   @lastname nvarchar(50),
   @nationality nvarchar(50),
   @code int output
as
   if  not exists(select * from nationality where nationality=@nationality)
   begin
    insert into nationality(nationality)values(@nationality)
   end
   declare @id int
   select @id=nationalitycode from nationality where nationality=@nationality
   insert into usuario(name,lastname,nationalitycode) values (@name,@lastname,@id)
   SET @code=SCOPE_IDENTITY()

对于您的更新代码，我将更改为：

cmd.CommandText = "sp_update";
cmd.Parameters.AddWithValue("@code", txtCode.Text);
cmd.Parameters.AddWithValue("@name", txtName.Text);
cmd.Parameters.AddWithValue("@lastname", txtLastName.Text);
cmd.Parameters.AddWithValue("@nationality", txtNationality.Text);
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