插入到 Microsoft sql 服务器用户数据库失败

Question

为什么我不能将多个用户添加到 yii2 应用程序？我正在使用 Microsoft sql 服务器，yii2 应用程序的注册代码尚未更改。当用户 table 中没有记录时，我可以使用 yii 的注册页面添加用户。这是数据库脚本

    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

这是截图。error while signup for 2nd times

Answer 1

您的问题似乎与 [password_reset_token] 列有关。

您对该列有一个唯一约束，但它允许 NULL 值并且您没有在此语句中插入数据，这就是为什么它将 NULL 视为重复键。您可以删除此字段的唯一约束或考虑将唯一数据插入此字段。

插入到 Microsoft sql 服务器用户数据库失败

Insert to microsoft sql server user database failed

sql-server

yii2-advanced-app