插入到Microsoft SQL Server用戶數據庫失敗

爲什麼我不能向yii2應用程序添加多個用戶？我正在使用微軟sql服務器，yii2應用程序的註冊碼尚未更改。當用戶表中沒有記錄時，我可以使用yii的註冊頁面添加用戶。這是DB腳本插入到Microsoft SQL Server用戶數據庫失敗

USE [IBR] 
GO 

/****** Object: Table [dbo].[user] Script Date: 11/05/2016 16.51.02 ******/ 
SET ANSI_NULLS ON 
GO 

SET QUOTED_IDENTIFIER ON 
GO 

CREATE TABLE [dbo].[user](
    [id] [int] IDENTITY(1,1) NOT NULL, 
    [username] [nvarchar](255) NOT NULL, 
    [auth_key] [nvarchar](32) NOT NULL, 
    [password_hash] [nvarchar](255) NOT NULL, 
    [password_reset_token] [nvarchar](255) NULL, 
    [email] [nvarchar](255) NOT NULL, 
    [status] [smallint] NOT NULL DEFAULT ((10)), 
    [created_at] [int] NOT NULL, 
    [updated_at] [int] NOT NULL, 
PRIMARY KEY CLUSTERED 
(
    [id] ASC 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY], 
UNIQUE NONCLUSTERED 
(
    [password_reset_token] ASC 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY], 
UNIQUE NONCLUSTERED 
(
    [email] ASC 
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY], 
UNIQUE NONCLUSTERED 
(
    [username] 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

這是截圖。 error while signup for 2nd times

來源

2016-05-11 Kurniawantaari

你從錯誤中沒有理解什麼？錯誤本身告訴你，你正在使用一個唯一列的重複值 –

好像你的查詢違反了表的唯一約束。檢查表中是否已有用戶名「Tari」的條目 – bmsqldev

看起來您根本沒有將數據插入到主鍵中。檢查你的表格結構並找出PK的位置。你需要插入一個唯一的值，在你試圖插入一個NULL的時候，但是那裏已經有一個值了。 –