Question

我想创建一个在其中创建新数据库的SQL Server数据库项目。这是我的项目的结构：

基本上，我想要4个表，所以我为它们添加了4个.sql脚本。

CREATE TABLE [dbo].[MovieActors]
(
    [Id] INT NOT NULL PRIMARY KEY,
    [ActorID] INT NOT NULL,
    [MovieID] INT NOT NULL
)

CREATE TABLE [dbo].[Actors]
(
    [Id] INT NOT NULL PRIMARY KEY, 
    [Name] NVARCHAR(50) NOT NULL, 
    [Bio] NVARCHAR(MAX) NULL, 
    [Sex] NCHAR(10) NOT NULL, 
    [DOB] DATE NULL
)

CREATE TABLE [dbo].[Movies]
(
    [Id] INT NOT NULL PRIMARY KEY, 
    [Name] NVARCHAR(50) NOT NULL, 
    [Year of Release] SMALLINT NULL, 
    [PLOT] NVARCHAR(MAX) NULL, 
    [Poster] NVARCHAR(MAX) NULL,
    [ProducerId] int FOREIGN KEY REFERENCES Producers(Id)
)

CREATE TABLE [dbo].[Producers]
(
    [Id] INT NOT NULL PRIMARY KEY, 
    [Name] NVARCHAR(50) NOT NULL, 
    [Bio] NVARCHAR(MAX) NULL, 
    [Sex] NCHAR(10) NULL, 
    [DOB] DATE NULL
)

我还添加了部署前（用于删除现有数据）和部署后脚本（用于播种初始数据）。

预部署：

DROP TABLE [dbo].MovieActors
DROP TABLE [dbo].Movies
DROP TABLE dbo.Actors
DROP TABLE dbo.Producers

部署后：

INSERT INTO dbo.Actors (Id, Name, Sex)
VALUES (1, 'Actor1', 'MALE')

INSERT INTO dbo.Producers (Id, Name, Sex)
VALUES (1, 'Producer1', 'MALE')

INSERT INTO dbo.Movies (Id, Name, ProducerId)
VALUES (1, 'Movie1', 1)

INSERT INTO dbo.MovieActors (Id, MovieID, ActorID)
VALUES (1, 1, 1)

但是我每次构建项目时都不会部署它-仅显示构建成功
此外，数据库创建脚本在哪里。
当我右键单击“发布”并选择“选项”以生成脚本时，主脚本中只有部署前和部署后脚本。 -

Right Click Project -> Publish option

这是生成的脚本-

/*
Deployment script for MoviesDatabase

This code was generated by a tool.
Changes to this file may cause incorrect behavior and will be lost if
the code is regenerated.
*/

GO
SET ANSI_NULLS, ANSI_PADDING, ANSI_WARNINGS, ARITHABORT, CONCAT_NULL_YIELDS_NULL, QUOTED_IDENTIFIER ON;

SET NUMERIC_ROUNDABORT OFF;


GO
:setvar DatabaseName "MoviesDatabase"
:setvar DefaultFilePrefix "MoviesDatabase"
:setvar DefaultDataPath "C:\Users\viiye\AppData\Local\Microsoft\VisualStudio\SSDT"
:setvar DefaultLogPath "C:\Users\viiye\AppData\Local\Microsoft\VisualStudio\SSDT"

GO
:on error exit
GO
/*
Detect SQLCMD mode and disable script execution if SQLCMD mode is not supported.
To re-enable the script after enabling SQLCMD mode, execute the following:
SET NOEXEC OFF; 
*/
:setvar __IsSqlCmdEnabled "True"
GO
IF N'$(__IsSqlCmdEnabled)' NOT LIKE N'True'
    BEGIN
        PRINT N'SQLCMD mode must be enabled to successfully execute this script.';
        SET NOEXEC ON;
    END


GO
USE [$(DatabaseName)];


GO
/*
 Pre-Deployment Script Template                         
--------------------------------------------------------------------------------------
 This file contains SQL statements that will be executed before the build script.   
 Use SQLCMD syntax to include a file in the pre-deployment script.          
 Example:      :r .\myfile.sql                              
 Use SQLCMD syntax to reference a variable in the pre-deployment script.        
 Example:      :setvar TableName MyTable                            
               SELECT * FROM [$(TableName)]                 
--------------------------------------------------------------------------------------
*/
Drop table [dbo].MovieActors
Drop table [dbo].Movies
Drop table dbo.Actors
Drop table dbo.Producers
GO

GO
/*
Post-Deployment Script Template                         
--------------------------------------------------------------------------------------
 This file contains SQL statements that will be appended to the build script.       
 Use SQLCMD syntax to include a file in the post-deployment script.         
 Example:      :r .\myfile.sql                              
 Use SQLCMD syntax to reference a variable in the post-deployment script.       
 Example:      :setvar TableName MyTable                            
               SELECT * FROM [$(TableName)]                 
--------------------------------------------------------------------------------------
*/
INSERT INTO dbo.Actors (Id,Name,Sex)
values (1,'Actor1','MALE')

INSERT INTO dbo.Producers (Id,Name,Sex)
values (1,'Producer1','MALE')

INSERT INTO dbo.Movies (Id,Name,ProducerId)
values (1,'Movie1',1)

Insert into dbo.MovieActors (Id,MovieID,ActorID)
values (1,1,1)

GO

GO
PRINT N'Update complete.';


GO

可以看出，该脚本中没有用于创建发布表的脚本。为什么？这是实现需要从头开始创建表的要求的正确方法吗？

Answer 1

这是发布项目的简化步骤：

已构建项目，此步骤的输出为DACPAC文件
将DACPAC与目标数据库进行比较，并生成发布脚本
针对目标数据库执行发布脚本

您遇到的问题是，执行第二步时，表存在于目标数据库中，因此它们的创建未包含在发布脚本中。在步骤3中执行预部署脚本！

基本上，您不需要做的就是删除表。只需在预脚本中截断它们，然后在帖子中填充它们即可。或者只是在发布脚本中使用MERGE语句。您可以使用generate-sql-merge过程为所需表生成MERGE语句。

Visual Studio中的SQL Server数据库项目-如何构建新数据库

1 个答案: