Question

我在创建用户时遇到了麻烦。当我创建一个新用户时，我的proc返回-1，但它必须返回用户id。

存储过程运行良好，它将数据插入表中，但返回-1

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

ALTER PROCEDURE [dbo].[sp_CreateUser]
    @Address nvarchar(300),
    @BirthDay date,
    @Email nvarchar(64),
    @FullName nvarchar(300),
    @Image nvarchar(2000),
    @Password nvarchar(512),
    @PhoneNumber nvarchar(10),
    @Sex nvarchar(3),
    @RoleId int
AS
BEGIN TRY
    SET NOCOUNT ON;

    INSERT INTO [dbo].[Users] ([Address], [BirthDay], [Email], [FullName], [Image], [Password], [PhoneNumber], [Sex], [RoleId])
    VALUES (@Address, @BirthDay, @Email, @FullName, @Image, @Password, @PhoneNumber, @Sex, @RoleId)
    RETURN 0    
END TRY
BEGIN CATCH
    RETURN -1
END CATCH

我的存储库方法创建：

public async Task<int> Create(User user)
{
    string sql = $"sp_CreateUser @BirthDay = '{user.BirthDay.ToString("yyyy-MM-dd")}', @Email = '{user.Email}', @FullName = '{user.FullName}', @Password = '{user.Password}', @RoleId = {user.RoleId}, @Address = '{user.Address}', @Image = '{user.Image}', @PhoneNumber = '{user.PhoneNumber}', @Sex = '{user.Sex}'";
    int result = await _db.Database.ExecuteSqlCommandAsync(sql);
    return result;
}

Answer 1

在Try / Catch中尝试使用以下查询。

Dim x, x2, y, y2()
Dim i As Long
Dim dict As Object
Dim LastRowForDict As Long
Dim p As Long
dim ws as worksheet
dim LastRowResult as long

set ws = worksheets("DictionaryTest")
Set dict = CreateObject("Scripting.Dictionary")

With ws

    LastRowForDict = .Range("B" & rows.Count).End(xlUp).Row

For p = 1 To LastRowForDict
If ws.Range("N" & p).Value = "ABC" Then 'only adds to dictionary if line is an "ABC" line


    x = .Range("H2:H" & LastRowForDict).Value
    x2 = .Range("AG2:AG" & LastRowForDict).Value

         'Check if key exists and if yes add new value to existing item (SUM them)

       ''' For i = 1 To UBound(x, 1)     should this be here?
If Not dict.Exists(x(p, 1)) Then
    dict.Item(x(p, 1)) = x2(p, 1)
Else          

   dict.Item(x(p, 1)) = CDbl(dict.Item(x(p, 1))) + CDbl(x2(p, 1))
End If
'''next i     should this be here?
End If
Next p


End With

 'map the values
 With ws
    LastRowResult = .Range("B" & rows.Count).End(xlUp).Row
    y = .Range("H2:H" & LastRowResult).Value    'looks up to this range
    ReDim y2(1 To UBound(y, 1), 1 To 1)   '<< size the output array
    For i = 1 To UBound(y, 1)
        If dict.Exists(y(i, 1)) Then
            y2(i, 1) = dict(y(i, 1))
        Else
            y2(i, 1) = ""                                            
        End If
    Next i
    .Range("CK2:CK" & LastRowResult).Value = y2  '<< place the output on the sheet
End With

它将为您提供有关触发执行catch块的内容的更多信息

有关此检索错误信息的更多信息，请访问此处。

https://docs.microsoft.com/en-us/sql/t-sql/language-elements/try-catch-transact-sql

Answer 2

<强>解决！

我已经使用SqlParameter添加了返回参数，现在一切运行良好。

public async Task<int> Create(User user)
        {
            var param = new SqlParameter
            {
                ParameterName = "@CreatedId",
                SqlDbType = SqlDbType.Int,
                Direction = ParameterDirection.Output
            };

            string sql = $"exec @CreatedId = sp_CreateUser @BirthDay = '{user.BirthDay.ToString("yyyy-MM-dd")}', @Email = '{user.Email}', @FullName = '{user.FullName}', @Password = '{user.Password}', @RoleId = {user.RoleId}, @Address = '{user.Address}', @Image = '{user.Image}', @PhoneNumber = '{user.PhoneNumber}', @Sex = '{user.Sex}'";
            int result = await _db.Database.ExecuteSqlCommandAsync(sql, param);
            return (int)param.Value;
        }

或另一种方法是在存储过程中设置

SET NOCOUNT OFF

创建用户后，存储过程返回-1

2 个答案: