插入视图重新组合多个表?

nc1teljy  于 2021-08-09  发布在  Java
关注(0)|答案(1)|浏览(353)

为了练习,我创建了以下数据库,我创建了一个视图,其中显示了[user]表和[address]表中的信息

Go
DROP VIEW IF EXISTS user_all
GO
CREATE VIEW user_all([name], [sex], [date_of_birth], [account_type], [street], [number], [locality], [city], [country_code], [style_ref]) AS
SELECT [user].[user_name], [user].[user_sex], [user].[date_of_birth],[user].[account_type],
    [address].[street], [address].[number], [address].[locality], [address].[city], [address].[country_code],
    [user_dance_style].[style_ref]   
FROM [user]
JOIN [address]
ON [user].[id_address] = [address].[id_address]
JOIN [user_dance_style]
ON [user].[id_user] = [user_dance_style].[id_user]
JOIN [style]
ON [user_dance_style].[style_ref] = [style].[style_ref]

我想在此视图中插入:

INSERT INTO user_all
    SELECT 'fabrice', 'm', '1982-10-03', '2', 'pl du miroir', '8', 'jette', 'bruxelles', 'be', '3';

GO

它给出了一个错误:
msg 4405,level 16,state 1,line 1视图或函数'user\u all'不可更新,因为修改会影响多个基表。
我找到了这个教程,但我一定是错过了一些东西,因为我无法达到预期的结果。
如何在视图中插入重新组合多个表中的信息?

USE [master]
DROP DATABASE IF EXISTS [dance_partner];
GO

CREATE DATABASE [dance_partner];
GO

USE [dance_partner];
GO

CREATE TABLE [user](
    [id_user] INT PRIMARY KEY NOT NULL IDENTITY(1,1),
    [user_name] VARCHAR(45) UNIQUE,
    [User_Sex] CHAR(1),
    [date_of_birth] DATE,
    [account_type] INT,
    [id_address] INT,
);

GO

CREATE TABLE [address](
    [id_address] INT PRIMARY KEY NOT NULL IDENTITY(1,1),
    [street] VARCHAR(255) NOT NULL,
    [number] INT NOT NULL,
    [locality] VARCHAR(255) NOT NULL,
    [city] VARCHAR(255) NOT NULL,
    [country_code] CHAR(2) NOT NULL
);

GO

CREATE TABLE [membership](
    [account_type] INT PRIMARY KEY NOT NULL IDENTITY(1,1),
    [membership_name] VARCHAR(45),
    [membership_price] DECIMAL(4,2)
);

GO

CREATE TABLE [style](
    [style_ref] INT PRIMARY KEY NOT NULL IDENTITY(1,1),
    [style_name] VARCHAR(45)
);
GO

CREATE TABLE [dance](
    [id_dance] INT NOT NULL IDENTITY(1,1),
    [dancer_1_id_user] INT,
    [dancer_2_id_user] INT,
    [dance_dtg] DATETIME,
    [style_ref] INT,
    FOREIGN KEY (dancer_1_id_user) REFERENCES [user] (id_user),
    FOREIGN KEY (dancer_2_id_user) REFERENCES [user] (id_user),
    FOREIGN KEY (style_ref) REFERENCES [style] (style_ref)  
);

GO

CREATE TABLE [user_dance_style](
    [id_user] INT,
    [style_ref] INT
    FOREIGN KEY (id_user) REFERENCES [user] (id_user),
    FOREIGN KEY (style_ref) REFERENCES [style] (style_ref)
)

ALTER TABLE [user]
   ADD CONSTRAINT fk_user_memebership FOREIGN KEY (account_type)
      REFERENCES membership (account_type),
      CONSTRAINT fk_user_address FOREIGN KEY (id_address)
      REFERENCES address (id_address);

-- disable all constraints
EXEC sp_MSforeachtable "ALTER TABLE ? NOCHECK CONSTRAINT all"

INSERT INTO [membership] ([membership_name], [membership_price])
VALUES 
('free', '0'),
('regular', '15'),
('premium', '30')
GO

INSERT INTO [style]([style_name])
VALUES
('Salsa'),
('Bachata'),
('Kizomba')

GO

INSERT INTO [user] ([user_name], [User_Sex], [date_of_birth], [account_type], [id_address])
VALUES 
('sara', 'f', '1990-04-23', '1', '1'),
('elenor', 'f', '1989-02-18', '1', '2'),
('eva', 'f', '1987-01-04','1','3'),
('mike', 'm', '1985-05-02', '1', '4'),
('phil', 'm', '1985-03-01', '1', '5'),
('laurent', 'm', '1986-02-14', '2', '6'),
('nidia', 'f', '1985-01-16', '2', '7'),
('franz', 'm', '1990-03-17', '2', '8'),
('stephan', 'm', '1991-05-23', '2', '9'),
('sandra', 'f', '1993-03-25', '3', '10'),
('virginie', 'f', '1999-05-03', '3', '11'),
('claire', 'f', '1992-02-24', '3', '12'),
('laurence', 'f', '1991-04-26', '3', '13'),
('pierre', 'm', '1987-02-14', '3', '14'),
('thierry', 'm', '1989-01-04', '3', '15'),
('nancy', 'f', '1950-04-15', '1', '16'),
('cédric', 'm', '1980-02-02', '1', '17')

GO

INSERT INTO [address] ([street], [number], [locality], [city], [country_code])
VALUES
('av de l''exposition', '13', 'laeken', 'bruxelles', 'be'),
('rue cans', '2', 'ixelles', 'bruxelles', 'be'),
('rue goffart', '32', 'ixelles', 'bruxelles', 'be'),
('ch de haecht', '17', 'schaerbeek', 'bruxelles', 'be'),
('rue metsys', '108', 'schaerbeek', 'bruxelles', 'be'),
('rue du pré', '223', 'jette', 'bruxelles', 'be'),
('rue sergent sorenser', '65', 'ganshoren', 'bruxelles', 'be'),
('rue d''aumale', '38', 'anderlecht', 'bruxelles', 'be'),
('av de fré', '363', 'uccle', 'bruxelles', 'be'),
('rue de lisbonne', '52', 'saint gilles', 'bruxelles', 'be'),
('av neptune', '24', 'forest', 'bruxelles', 'be'),
('av mozart', '76', 'forest', 'bruxelles', 'be'),
('rue emile delva', '92', 'laeken', 'bruxelles', 'be'),
('av de la chasse', '68', 'etterbeek', 'bruxelles', 'be'),
('rue leopold 1', '42', 'laeken', 'bruxelles', 'be'),
('av charle woeste', '68', 'jette', 'bruxelles', 'be'),
('ch de boondael', '12', 'ixelles', 'bruxelles', 'be')

GO

INSERT INTO [user_dance_style] ([id_user], [style_ref])
VALUES
(1, 1),(1, 2),(1, 3),(2, 1),(2, 2),(2, 3),(3, 1),(3, 2),(4, 1),(4, 2),
(4, 3),(5, 2),(5, 3),(6, 1),(7, 3),(8, 3),(9, 1),(9, 2),(9, 3),(10, 1),
(10, 2),(10, 3),(11, 3),(12, 2),(13, 2),(14, 1),(15, 3),(16, 1)

GO

INSERT INTO [dance]([dancer_1_id_user], [dancer_2_id_user], [dance_dtg], [style_ref])
VALUES
(1, 2, convert(datetime, '2019-11-24 10:34:09 PM',20), 3),
(4, 2, convert(datetime, '2019-11-24 10:50:00 PM',20), 3),
(3, 5, convert(datetime, '2019-11-24 10:35:00 PM',20), 2),
(6, 1, convert(datetime, '2019-11-24 10:37:00 PM',20), 1),
(7, 2, convert(datetime, '2019-11-24 10:37:00 PM',20), 3),
(8, 1, convert(datetime, '2019-12-03 11:20:03 PM',20), 3),
(9, 3, convert(datetime, '2019-12-23 10:45:00 AM',20), 1),
(10, 12, convert(datetime, '2019-12-26 11:20:00 AM',20), 2),
(11, 4, convert(datetime, '2020-01-02 08:45:00 AM',20), 3),
(12, 5, convert(datetime, '2020-01-02 11:10:04 AM',20), 2),
(13, 12, convert(datetime, '2020-02-04 09:25:00 PM',20), 2),
(14, 10, convert(datetime, '2020-02-25 10:45:00 AM',20), 1),
(2, 14, convert(datetime, '2020-02-25 08:45:00 PM',20), 1),
(5, 10, convert(datetime, '2020-03-01 11:15:06 AM',20), 2),
(17, 2, convert(datetime, '2020-03-04 03:15:06 AM',20), 1)

GO
hpxqektj

hpxqektj1#

从sql server创建视图文档:
任何修改,包括update、insert和delete语句,都必须只引用一个基表中的列。
从链接到的教程中:
为了将数据插入(更新和删除)到使用多个表创建的视图中,需要使用“instead-of-trigger”。
你还没有在你的视图中添加这样一个触发器。
值得一提的是,除了出于好奇而进行的练习之外,我从未见过有人在实践中尝试通过视图进行更新。

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