Question

如何从存储过程插入表（用户定义类型）并传递给c＃

表格结构：

CREATE TABLE [dbo].[RegisterChoiceUserInitial](
    [RegisterChoiceUserInitialID] [int] IDENTITY(1,1) NOT NULL,
    [UserId] [uniqueidentifier] NOT NULL,
    [RegisterChoiceUserInitialJob] [nvarchar](50) NULL,
    [RegisterChoiceUserInitialOrganization] [nvarchar](50) NULL,
    [RegisterChoiceUserInitialUnit] [nvarchar](50) NULL,
    [RegisterChoiceUserInitialMembershipType] [nvarchar](50) NULL,
    [RegisterChoiceUserInitialStart] [nvarchar](10) NULL,
    [RegisterChoiceUserInitialEnd] [nvarchar](10) NULL,
 CONSTRAINT [PK_RegisterChoiceUserInitial] PRIMARY KEY CLUSTERED 
(
    [RegisterChoiceUserInitialID] ASC
)

用户定义的类型：

CREATE TYPE [dbo].[TableTypeInitial] AS TABLE(
    [ID] [int] NULL,
    [InitialJob] [nvarchar](50) NULL,
    [InitialOrganization] [nvarchar](50) NULL,
    [InitialUnit] [nvarchar](50) NULL,
    [InitialMembershipType] [nvarchar](50) NULL,
    [InitialMembershipStart] [nvarchar](10) NULL,
    [InitialMembershipEnd] [nvarchar](10) NULL
)

Answer 1

您应该为您的类型进行序列化/反序列化，并将序列化对象的字符串写入SQL，然后当您需要获取它时，您从表中读取字符串并将其反序列化为您的类型。

修改

关于序列化，你可以在这里阅读csharp-tutorial-serialize-objects-to-a-file他们使用序列化文件，但将其转换为字符串不会很难

Answer 2

无法将数据表作为输出参数返回。将表结果从xp返回到c＃的唯一方法是使用xml param或以下列方式。

sql脚本：

create procedure sp_returnTable
    body of procedure
    **select * from RegisterChoiceUserInitial**
end

示例c＃代码：

   string connString = "<your connection string>";
    string sql = "name of your sp";

SqlConnection conn = new SqlConnection(connString);

try {
   SqlDataAdapter da = new SqlDataAdapter();
   da.SelectCommand = new SqlCommand(sql, conn);
   da.SelectCommand.CommandType = CommandType.StoredProcedure;

   DataSet ds = new DataSet();   
   da.Fill(ds, "result_name");

   DataTable dt = ds.Tables["result_name"];

   foreach (DataRow row in dt.Rows) {
               //manipulate your data
   }

} catch(Exception e) {
   Console.WriteLine("Error: " + e);
} finally {
   conn.Close();
}

如何从存储过程插入表（用户定义类型）并传递给c＃

2 个答案: