我正在尝试使用迁移更新我的数据库。 当我手动删除所有表格然后手工重新创建时，我可能搞砸了。
我首先使用代码，Add-Migration命令给了我这个：
public override void Up()
{
DropForeignKey("[dbo.Products]", "[Bundle_Id]", "[dbo.Bundles]");
DropForeignKey("[dbo.Defects]", "[Product_Id]", "[dbo.Products]");
DropForeignKey("[dbo.Defects]", "[User_Id]", "[dbo.Users]");
RenameColumn(table: "[dbo.Products]", name: "[Bundle_Id]", newName: "[Bundles_BundlesId]");
RenameColumn(table: "[dbo.Defects]", name: "[Product_Id]", newName: "[Products_ProductsId]");
RenameColumn(table: "[dbo.Defects]", name: "[User_Id]", newName: "[Users_UsersId]");
RenameIndex(table: "[dbo.Products]", name: "[IX_Bundle_Id]", newName: "[IX_Bundles_BundlesId]");
RenameIndex(table: "[dbo.Defects]", name: "[IX_Product_Id]", newName: "[IX_Products_ProductsId]");
RenameIndex(table: "[dbo.Defects]", name: "[IX_User_Id]", newName: "[IX_Users_UsersId]");
DropPrimaryKey("[dbo.Bundles]");
DropPrimaryKey("[dbo.Defects]");
DropPrimaryKey("[dbo.Products]");
DropPrimaryKey("[dbo.Users]");
AddColumn("[dbo.Bundles]", "[BundlesId]", c => c.Long(nullable: false, identity: true));
AddColumn("[dbo.Defects]", "[DefectsId]", c => c.Long(nullable: false, identity: true));
AddColumn("[dbo.Defects]", "[ProductsId]", c => c.Int(nullable: false));
AddColumn("[dbo.Defects]", "[UsersId]", c => c.Int(nullable: false));
AddColumn("[dbo.Products]", "[ProductsId]", c => c.Long(nullable: false, identity: true));
AddColumn("[dbo.Products]", "[BundlesId]", c => c.Int(nullable: false));
AddColumn("[dbo.Users]", "[UsersId]", c => c.Long(nullable: false, identity: true));
AddPrimaryKey("[dbo.Bundles]", "[BundlesId]");
AddPrimaryKey("[dbo.Defects]", "[DefectsId]");
AddPrimaryKey("[dbo.Products]", "[ProductsId]");
AddPrimaryKey("[dbo.Users]", "[UsersId]");
AddForeignKey("[dbo.Products]", "[Bundles_BundlesId]", "[dbo.Bundles]", "[BundlesId]");
AddForeignKey("[dbo.Defects]", "[Products_ProductsId]", "[dbo.Products]", "[ProductsId]");
AddForeignKey("[dbo.Defects]", "[Users_UsersId]", "[dbo.Users]", "[UsersId]");
DropColumn("[dbo.Bundles]", "[Id]");
DropColumn("[dbo.Defects]", "[Id]");
DropColumn("[dbo.Defects]", "[ProductId]");
DropColumn("[dbo.Defects]", "[UserId]");
DropColumn("[dbo.Products]", "[Id]");
DropColumn("[dbo.Products]", "[BundleId]");
DropColumn("[dbo.Users]", "[Id]");
}
public override void Down()
{
AddColumn("[dbo.Users]", "[Id]", c => c.Long(nullable: false, identity: true));
AddColumn("[dbo.Products]", "[BundleId]", c => c.Int(nullable: false));
AddColumn("[dbo.Products]", "[Id]", c => c.Long(nullable: false, identity: true));
AddColumn("[dbo.Defects]", "[UserId]", c => c.Int(nullable: false));
AddColumn("[dbo.Defects]", "[ProductId]", c => c.Int(nullable: false));
AddColumn("[dbo.Defects]", "[Id]", c => c.Long(nullable: false, identity: true));
AddColumn("[dbo.Bundles]", "[Id]", c => c.Long(nullable: false, identity: true));
DropForeignKey("[dbo.Defects]", "[Users_UsersId]", "[dbo.Users]");
DropForeignKey("[dbo.Defects]", "[Products_ProductsId]", "[dbo.Products]");
DropForeignKey("[dbo.Products]", "[Bundles_BundlesId]", "[dbo.Bundles]");
DropPrimaryKey("[dbo.Users]");
DropPrimaryKey("[dbo.Products]");
DropPrimaryKey("[dbo.Defects]");
DropPrimaryKey("[dbo.Bundles]");
DropColumn("[dbo.Users]", "[UsersId]");
DropColumn("[dbo.Products]", "[BundlesId]");
DropColumn("[dbo.Products]", "[ProductsId]");
DropColumn("[dbo.Defects]", "[UsersId]");
DropColumn("[dbo.Defects]", "[ProductsId]");
DropColumn("[dbo.Defects]", "[DefectsId]");
DropColumn("[dbo.Bundles]", "[BundlesId]");
AddPrimaryKey("[dbo.Users]", "[Id]");
AddPrimaryKey("[dbo.Products]", "[Id]");
AddPrimaryKey("[dbo.Defects]", "[Id]");
AddPrimaryKey("[dbo.Bundles]", "[Id]");
RenameIndex(table: "[dbo.Defects]", name: "[IX_Users_UsersId]", newName: "[IX_User_Id]");
RenameIndex(table: "[dbo.Defects]", name: "[IX_Products_ProductsId]", newName: "[IX_Product_Id]");
RenameIndex(table: "[dbo.Products]", name: "[IX_Bundles_BundlesId]", newName: "[IX_Bundle_Id]");
RenameColumn(table: "[dbo.Defects]", name: "[Users]_UsersId]", newName: "[User_Id]");
RenameColumn(table: "[dbo.Defects]", name: "[Products_ProductsId]", newName: "[Product_Id]");
RenameColumn(table: "[dbo.Products]", name: "[Bundles_BundlesId]", newName: "[Bundle_Id]");
AddForeignKey("[dbo.Defects]", "[User_Id]", "[dbo.Users]", "[Id]");
AddForeignKey("[dbo.Defects]", "[Product_Id]", "[dbo.Products]", "[Id]");
AddForeignKey("[dbo.Products]", "[Bundle_Id]", "[dbo.Bundles]", "[Id]");
}
我用括号（'['和']'）包围了每个名字，显然在我的案例中帮助了一些人。 我发帖是因为，你猜对了，它不适合我。
我总是得到：
参数@objname不明确或声称@objtype（COLUMN）错误。
有人会猜到什么是禁止我更新我的数据库吗？我应该从另一个项目中重新开始吗？
谢谢！
编辑：评论后，我的括号放错了方向，我更新为：
public partial class Migr : DbMigration
{
public override void Up()
{
DropForeignKey("[dbo].[Products]", "[Bundle_Id]", "[dbo].[Bundles]");
DropForeignKey("[dbo].[Defects]", "[Product_Id]", "[dbo].[Products]");
DropForeignKey("[dbo].[Defects]", "[User_Id]", "[dbo].[Users]");
RenameColumn(table: "[dbo].[Products]", name: "[Bundle_Id]", newName: "[Bundles_BundlesId]");
RenameColumn(table: "[dbo].[Defects]", name: "[Product_Id]", newName: "[Products_ProductsId]");
RenameColumn(table: "[dbo].[Defects]", name: "[User_Id]", newName: "[Users_UsersId]");
RenameIndex(table: "[dbo].[Products]", name: "[IX_Bundle_Id]", newName: "[IX_Bundles_BundlesId]");
RenameIndex(table: "[dbo].[Defects]", name: "[IX_Product_Id]", newName: "[IX_Products_ProductsId]");
RenameIndex(table: "[dbo].[Defects]", name: "[IX_User_Id]", newName: "[IX_Users_UsersId]");
DropPrimaryKey("[dbo].[Bundles]");
DropPrimaryKey("[dbo].[Defects]");
DropPrimaryKey("[dbo].[Products]");
DropPrimaryKey("[dbo].[Users]");
AddColumn("[dbo].[Bundles]", "[BundlesId]", c => c.Long(nullable: false, identity: true));
AddColumn("[dbo].[Defects]", "[DefectsId]", c => c.Long(nullable: false, identity: true));
AddColumn("[dbo].[Defects]", "[ProductsId]", c => c.Int(nullable: false));
AddColumn("[dbo].[Defects]", "[UsersId]", c => c.Int(nullable: false));
AddColumn("[dbo].[Products]", "[ProductsId]", c => c.Long(nullable: false, identity: true));
AddColumn("[dbo].[Products]", "[BundlesId]", c => c.Int(nullable: false));
AddColumn("[dbo].[Users]", "[UsersId]", c => c.Long(nullable: false, identity: true));
AddPrimaryKey("[dbo].[Bundles]", "[BundlesId]");
AddPrimaryKey("[dbo].[Defects]", "[DefectsId]");
AddPrimaryKey("[dbo].[Products]", "[ProductsId]");
AddPrimaryKey("[dbo].[Users]", "[UsersId]");
AddForeignKey("[dbo].[Products]", "[Bundles_BundlesId]", "[dbo].[Bundles]", "[BundlesId]");
AddForeignKey("[dbo].[Defects]", "[Products_ProductsId]", "[dbo].[Products]", "[ProductsId]");
AddForeignKey("[dbo].[Defects]", "[Users_UsersId]", "[dbo].[Users]", "[UsersId]");
DropColumn("[dbo].[Bundles]", "[Id]");
DropColumn("[dbo].[Defects]", "[Id]");
DropColumn("[dbo].[Defects]", "[ProductId]");
DropColumn("[dbo].[Defects]", "[UserId]");
DropColumn("[dbo].[Products]", "[Id]");
DropColumn("[dbo].[Products]", "[BundleId]");
DropColumn("[dbo].[Users]", "[Id]");
}
public override void Down()
{
AddColumn("[dbo].[Users]", "[Id]", c => c.Long(nullable: false, identity: true));
AddColumn("[dbo].[Products]", "[BundleId]", c => c.Int(nullable: false));
AddColumn("[dbo].[Products]", "[Id]", c => c.Long(nullable: false, identity: true));
AddColumn("[dbo].[Defects]", "[UserId]", c => c.Int(nullable: false));
AddColumn("[dbo].[Defects]", "[ProductId]", c => c.Int(nullable: false));
AddColumn("[dbo].[Defects]", "[Id]", c => c.Long(nullable: false, identity: true));
AddColumn("[dbo].[Bundles]", "[Id]", c => c.Long(nullable: false, identity: true));
DropForeignKey("[dbo].[Defects]", "[Users_UsersId]", "[dbo].[Users]");
DropForeignKey("[dbo].[Defects]", "[Products_ProductsId]", "[dbo].[Products]");
DropForeignKey("[dbo].[Products]", "[Bundles_BundlesId]", "[dbo].[Bundles]");
DropPrimaryKey("[dbo].[Users]");
DropPrimaryKey("[dbo].[Products]");
DropPrimaryKey("[dbo].[Defects]");
DropPrimaryKey("[dbo].[Bundles]");
DropColumn("[dbo].[Users]", "[UsersId]");
DropColumn("[dbo].[Products]", "[BundlesId]");
DropColumn("[dbo].[Products]", "[ProductsId]");
DropColumn("[dbo].[Defects]", "[UsersId]");
DropColumn("[dbo].[Defects]", "[ProductsId]");
DropColumn("[dbo].[Defects]", "[DefectsId]");
DropColumn("[dbo].[Bundles]", "[BundlesId]");
AddPrimaryKey("[dbo].[Users]", "[Id]");
AddPrimaryKey("[dbo].[Products]", "[Id]");
AddPrimaryKey("[dbo].[Defects]", "[Id]");
AddPrimaryKey("[dbo].[Bundles]", "[Id]");
RenameIndex(table: "[dbo].[Defects]", name: "[IX_Users_UsersId]", newName: "[IX_User_Id]");
RenameIndex(table: "[dbo].[Defects]", name: "[IX_Products_ProductsId]", newName: "[IX_Product_Id]");
RenameIndex(table: "[dbo].[Products]", name: "[IX_Bundles_BundlesId]", newName: "[IX_Bundle_Id]");
RenameColumn(table: "[dbo].[Defects]", name: "[Users]_UsersId]", newName: "[User_Id]");
RenameColumn(table: "[dbo].[Defects]", name: "[Products_ProductsId]", newName: "[Product_Id]");
RenameColumn(table: "[dbo].[Products]", name: "[Bundles_BundlesId]", newName: "[Bundle_Id]");
AddForeignKey("[dbo].[Defects]", "[User_Id]", "[dbo].[Users]", "[Id]");
AddForeignKey("[dbo].[Defects]", "[Product_Id]", "[dbo].[Products]", "[Id]");
AddForeignKey("[dbo].[Products]", "[Bundle_Id]", "[dbo].[Bundles]", "[Id]");
}
}
遗憾的是，这并没有解决我的问题。
答案 0 :(得分：1)
我的问题是，出于某种原因，当我运行Create-Migration时，它生成了一个引用表中不存在的字段的命令。一旦我解决了这个问题，它就完美无缺。