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.EDMXファイルを右クリックしてをクリックGenerate Database From Modelすると、テーブル名が原因で結果のスクリプトが明らかに間違っています。生成されるのは次のスクリプトです。DROP TABLEパーツとパーツのテーブル名に注意してくださいCREATE TABLE

なぜこれが一貫していないのですか?

これは明らかに再利用可能なスクリプトではありません。私が作成したのは、「住所」という名前のエンティティと「会社」という名前のエンティティなどです(すべて単数)。EntitySet 名は複数形です。「Pluralize New Objects」ブール値もこれを変更しません。それで、取引は何ですか?

価値があるのは、最初に、複数形化されていない名前のテーブルを持つデータベースを指すことで EDMX を生成したことです。いくつかの変更を加えたので、逆に戻りたいと思います。db-first モデルも model-first モデルもすべてのシナリオで理想的ではないため、前後に移動するオプションが必要です。また、複数の人が両方を使用することによるマージの問題がないように制御できます。同時に方法。

-- --------------------------------------------------
-- Dropping existing FOREIGN KEY constraints
-- NOTE: if the constraint does not exist, an ignorable error will be reported.
-- --------------------------------------------------

    ALTER TABLE [Address] DROP CONSTRAINT [FK_Address_StateID-State_ID];
GO
    ALTER TABLE [Company] DROP CONSTRAINT [FK_Company_AddressID-Address_ID];
GO
    ALTER TABLE [Employee] DROP CONSTRAINT [FK_Employee_BossEmployeeID-Employee_ID];
GO
    ALTER TABLE [Employee] DROP CONSTRAINT [FK_Employee_CompanyID-Company_ID];
GO
    ALTER TABLE [Employee] DROP CONSTRAINT [FK_Employee_PersonID-Person_ID];
GO
    ALTER TABLE [Person] DROP CONSTRAINT [FK_Person_AddressID-Address_ID];
GO

-- --------------------------------------------------
-- Dropping existing tables
-- NOTE: if the table does not exist, an ignorable error will be reported.
-- --------------------------------------------------

    DROP TABLE [Address];
GO
    DROP TABLE [Company];
GO
    DROP TABLE [Employee];
GO
    DROP TABLE [Person];
GO
    DROP TABLE [State];
GO

-- --------------------------------------------------
-- Creating all tables
-- --------------------------------------------------

-- Creating table 'Addresses'
CREATE TABLE [Addresses] (
    [ID] int IDENTITY(1,1) NOT NULL,
    [StreetAddress] nvarchar(100)  NOT NULL,
    [City] nvarchar(100)  NOT NULL,
    [StateID] int  NOT NULL,
    [Zip] nvarchar(10)  NOT NULL
);
GO

-- Creating table 'Companies'
CREATE TABLE [Companies] (
    [ID] int IDENTITY(1,1) NOT NULL,
    [Name] nvarchar(100)  NOT NULL,
    [AddressID] int  NOT NULL
);
GO

-- Creating table 'People'
CREATE TABLE [People] (
    [ID] int IDENTITY(1,1) NOT NULL,
    [FirstName] nvarchar(100)  NOT NULL,
    [LastName] nvarchar(100)  NOT NULL,
    [AddressID] int  NOT NULL
);
GO

-- Creating table 'States'
CREATE TABLE [States] (
    [ID] int IDENTITY(1,1) NOT NULL,
    [Name] nvarchar(100)  NOT NULL,
    [Abbreviation] nvarchar(2)  NOT NULL
);
GO

-- Creating table 'Employees'
CREATE TABLE [Employees] (
    [ID] int IDENTITY(1,1) NOT NULL,
    [PersonID] int  NOT NULL,
    [CompanyID] int  NOT NULL,
    [Position] nvarchar(100)  NOT NULL,
    [BossEmployeeID] int  NULL
);
GO

-- --------------------------------------------------
-- Creating all PRIMARY KEY constraints
-- --------------------------------------------------

-- Creating primary key on [ID] in table 'Addresses'
ALTER TABLE [Addresses]
ADD CONSTRAINT [PK_Addresses]
    PRIMARY KEY ([ID] );
GO

-- Creating primary key on [ID] in table 'Companies'
ALTER TABLE [Companies]
ADD CONSTRAINT [PK_Companies]
    PRIMARY KEY ([ID] );
GO

-- Creating primary key on [ID] in table 'People'
ALTER TABLE [People]
ADD CONSTRAINT [PK_People]
    PRIMARY KEY ([ID] );
GO

-- Creating primary key on [ID] in table 'States'
ALTER TABLE [States]
ADD CONSTRAINT [PK_States]
    PRIMARY KEY ([ID] );
GO

-- Creating primary key on [ID] in table 'Employees'
ALTER TABLE [Employees]
ADD CONSTRAINT [PK_Employees]
    PRIMARY KEY ([ID] );
GO

-- --------------------------------------------------
-- Creating all FOREIGN KEY constraints
-- --------------------------------------------------

-- Creating foreign key on [StateID] in table 'Addresses'
ALTER TABLE [Addresses]
ADD CONSTRAINT [FK_Address_StateID_State_ID]
    FOREIGN KEY ([StateID])
    REFERENCES [States]
        ([ID])
    ON DELETE NO ACTION ON UPDATE NO ACTION;

-- Creating non-clustered index for FOREIGN KEY 'FK_Address_StateID_State_ID'
CREATE INDEX [IX_FK_Address_StateID_State_ID]
ON [Addresses]
    ([StateID]);
GO

-- Creating foreign key on [AddressID] in table 'Companies'
ALTER TABLE [Companies]
ADD CONSTRAINT [FK_Company_AddressID_Address_ID]
    FOREIGN KEY ([AddressID])
    REFERENCES [Addresses]
        ([ID])
    ON DELETE NO ACTION ON UPDATE NO ACTION;

-- Creating non-clustered index for FOREIGN KEY 'FK_Company_AddressID_Address_ID'
CREATE INDEX [IX_FK_Company_AddressID_Address_ID]
ON [Companies]
    ([AddressID]);
GO

-- Creating foreign key on [AddressID] in table 'People'
ALTER TABLE [People]
ADD CONSTRAINT [FK_Person_AddressID_Address_ID]
    FOREIGN KEY ([AddressID])
    REFERENCES [Addresses]
        ([ID])
    ON DELETE NO ACTION ON UPDATE NO ACTION;

-- Creating non-clustered index for FOREIGN KEY 'FK_Person_AddressID_Address_ID'
CREATE INDEX [IX_FK_Person_AddressID_Address_ID]
ON [People]
    ([AddressID]);
GO

-- Creating foreign key on [CompanyID] in table 'Employees'
ALTER TABLE [Employees]
ADD CONSTRAINT [FK_Employee_CompanyID_Company_ID]
    FOREIGN KEY ([CompanyID])
    REFERENCES [Companies]
        ([ID])
    ON DELETE NO ACTION ON UPDATE NO ACTION;

-- Creating non-clustered index for FOREIGN KEY 'FK_Employee_CompanyID_Company_ID'
CREATE INDEX [IX_FK_Employee_CompanyID_Company_ID]
ON [Employees]
    ([CompanyID]);
GO

-- Creating foreign key on [BossEmployeeID] in table 'Employees'
ALTER TABLE [Employees]
ADD CONSTRAINT [FK_Employee_BossEmployeeID_Employee_ID]
    FOREIGN KEY ([BossEmployeeID])
    REFERENCES [Employees]
        ([ID])
    ON DELETE NO ACTION ON UPDATE NO ACTION;

-- Creating non-clustered index for FOREIGN KEY 'FK_Employee_BossEmployeeID_Employee_ID'
CREATE INDEX [IX_FK_Employee_BossEmployeeID_Employee_ID]
ON [Employees]
    ([BossEmployeeID]);
GO

-- Creating foreign key on [PersonID] in table 'Employees'
ALTER TABLE [Employees]
ADD CONSTRAINT [FK_Employee_PersonID_Person_ID]
    FOREIGN KEY ([PersonID])
    REFERENCES [People]
        ([ID])
    ON DELETE NO ACTION ON UPDATE NO ACTION;

-- Creating non-clustered index for FOREIGN KEY 'FK_Employee_PersonID_Person_ID'
CREATE INDEX [IX_FK_Employee_PersonID_Person_ID]
ON [Employees]
    ([PersonID]);
GO

-- --------------------------------------------------
-- Script has ended
-- --------------------------------------------------
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この問題に対する答えを見つけることができませんでした。さらに、DB ファーストとモデル ファーストのシナリオを行き来しないこの問題を再現する際に問題が発生しました。そのため、私は、前後に問題が発生し、EF を通過させるには悪い状況であると想定しています。

于 2010-04-29T18:54:22.247 に答える