aspcms更改数据库

// 示例代码：使用Entity Framework Migrations
public partial class AddNewColumn : DbMigration
{
    public override void Up()
    {
        AddColumn("dbo.Posts", "NewColumn", c => c.String());
    }

    public override void Down()
    {
        DropColumn("dbo.Posts", "NewColumn");
    }
}

-- 示例代码：备份数据库
BACKUP DATABASE [OldDatabase] TO DISK = 'C:\Backup\OldDatabase.bak' WITH FORMAT, INIT, NAME = 'Full Backup of OldDatabase';

-- 示例代码：优化索引
CREATE INDEX idx_PostTitle ON dbo.Posts (Title);

// 示例代码：修改连接字符串
<connectionStrings>
    <add name="DefaultConnection" connectionString="Data Source=newServer;Initial Catalog=newDatabase;User ID=user;Password=password;" providerName="System.Data.SqlClient" />
</connectionStrings>