TVP不符合表格类型

Question

下面是插入我的数据的函数.

                using (SqlCommand insSwipeDataCommand = connection.CreateCommand())
                {
                    insSwipeDataCommand.Transaction = transaction;
                    insSwipeDataCommand.CommandType = CommandType.StoredProcedure;
                    insSwipeDataCommand.CommandText = "dbo.insSwipeData_sp";

                    SqlParameter attendeeTableParam = insSwipeDataCommand.Parameters.Add("@AttendeeTable", SqlDbType.Structured);
                    attendeeTableParam.Value = this.dataTable;
                    attendeeTableParam.TypeName = "AttendeeTableType";

                    // add orgid parameter
                    insSwipeDataCommand.Parameters.Add("@orgId", SqlDbType.UniqueIdentifier).Value = this.organizationId;
                    insSwipeDataCommand.ExecuteNonQuery();
                }

insSwipeData_sp

create PROC dbo.insSwipeData_sp
(@AttendeeTable         AttendeeTableType READONLY
,@orgId                 UNIQUEIDENTIFIER
)

AS

BEGIN
    SET NOCOUNT ON


    DECLARE @enteredUserId  UNIQUEIDENTIFIER
    SET @enteredUserId = 'xxxxxxxxx-xxxx-xxx-xxxx-xxxxxxxxxx'

    -- Delete old Swipe records
    DELETE FROM dbo.swipeData_tbl
    WHERE orgId = @orgId

    -- CREATE Swipe Records
    INSERT INTO dbo.swipeData_tbl
    (orgId, sdid, rawData, enteredUserId, enteredUtc, manualEntry)
    SELECT @orgId, attendeeId, barcode
          ,@enteredUserId, GETUTCDATE(), 0 -- Consider ( datepart , date ) if date here is needed as NVARCHAR
    FROM @AttendeeTable
    WHERE barcode IS NOT NULL and LTRIM(RTRIM(barcode)) <> '';
END

这是我的AttendeeTableType架构的图像.

这是我this.datatable用于我的形象attendeeTableParam 在insSwipeDataCommand.ExecuteNonQuery();行我碰到下面的错误.

表值参数"@AttendeeTable"的数据不符合参数的表类型.

Answer 1

根据错误,您的数据不完全符合表类型.请注意"完全" - 如果您没有为列指定类型,则会推断它们,并且可以很容易地推断它们.这里最好的方法是创建一个与表类型定义匹配的表:

var dt = new DataTable();
dt.Columns.Add("firstName", typeof(string)).MaxLength = 100;
dt.Columns.Add("lastName", typeof(string)).MaxLength = 100;
dt.Columns.Add("studentId", typeof(string)).MaxLength = 10;
dt.Columns.Add("email", typeof(string)).MaxLength = 100;
dt.Columns.Add("barcode", typeof(string)).MaxLength = 100;
dt.Columns.Add("dob", typeof(string)).MaxLength = 200;
dt.Columns.Add("major", typeof(string)).MaxLength = 200;
dt.Columns.Add("gender", typeof(string)).MaxLength = 200;
dt.Columns.Add("classCode", typeof(string)).MaxLength = 15;
dt.Columns.Add("currentclassCode", typeof(string)).MaxLength = 15;
dt.Columns.Add("entranceCode", typeof(string)).MaxLength = 15;
dt.Columns.Add("attendeeId", typeof(Guid));

然后.Clone()在需要插入数据时用于创建具有正确模式的新表.这样,如果您的类型或长度不匹配,它将被捕获在客户端.

Answer 2

你的attendeeId看起来很奇怪。它必须Guid在 C# 端。