Question

我的SQL Server数据库中有一个大表，如下所示：

CREATE TABLE [dbo].[Servers](
[ServerId] [uniqueidentifier] NOT NULL,
[ServerName] [nvarchar](50) NULL,
[HostName] [nvarchar](50) NULL,
[OperatingSystem] [nvarchar](50) NULL,
[OSVersion] [nvarchar](50) NULL,
[OSComment] [nvarchar](200) NULL,
[ServerManufacturer] [nvarchar](50) NULL,
[ServerModel] [nvarchar](50) NULL,
[IP] [binary](4) NULL,
[Mask] [binary](4) NULL,
[Gateway] [binary](4) NULL,
[PrimaryDNS] [binary](4) NULL,
[SecondaryDNS] [binary](4) NULL,
[NetworkType] [nvarchar](20) NULL,
[NetworkComment] [nvarchar](200) NULL,
[SiteId] [uniqueidentifier] NULL,
[DataCenterRow] [smallint] NULL,
[DataCenterRack] [smallint] NULL,
[AntiVirusProduct] [nvarchar](50) NULL,
[AntiVirusVersion] [nvarchar](50) NULL,
[AntiVirusComment] [nvarchar](200) NULL,
[PassedOSSecurity] [nvarchar](50) NULL,
[Approved] [bit] NULL,
    [ApprovedBy] [nvarchar](50) NULL,
 CONSTRAINT [PK_Servers] PRIMARY KEY CLUSTERED 
(
    [ServerId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

在我的C＃Windows窗体应用程序中，我有一个显示该表内容的表单，并执行显示/创建/删除/更新操作。

现在，当我编辑记录中的某些字段时，我需要执行一个只更新已更新字段的查询。换句话说，我需要一个动态识别已编辑字段并更新它们的查询。

逐个更新列的存储过程如下所示：

    CREATE PROCEDURE dbo.UpdateServer @ServerName nvarchar(50), @HostName nvarchar(50),@OperatingSystem nvarchar(50),
                               @OSVersion nvarchar(50), @OSComment nvarchar(50),@ServerManufacturer nvarchar(50),
                               @ServerModel nvarchar(50), @IP nvarchar(15),@Mask nvarchar(15), @Gateway nvarchar(15), 
                               @PrimaryDNS nvarchar(15), @SecondaryDNS nvarchar(15), @NetworkType nvarchar(20),@NetworkComment nvarchar(200),
                               @SiteId uniqueidentifier, @DataCenterRow smallint, @DataCenterRack smallint, @AntiVirusProduct nvarchar(50),
                               @AntiVirusVersion nvarchar(50), @AntiVirusComment nvarchar(200), @PassedOSSecurity bit, @Approved bit,
                               @ApprovedBy nvarchar(50)
    AS
    UPDATE [SystemsInfo].[dbo].[Servers] 
    SET ServerName=@ServerName,HostName=@HostName,OperatingSystem=@OperatingSystem,OSVersion=@OSVersion,OSComment=@OSComment,ServerManufacturer=@ServerManufacturer,ServerModel=@ServerModel,IP=(select dbo.fnBinaryIPv4(@IP)),
           Mask=(select dbo.fnBinaryIPv4(@Mask)),Gateway=(select dbo.fnBinaryIPv4(@Gateway)),PrimaryDNS=(select dbo.fnBinaryIPv4(@PrimaryDNS)),SecondaryDNS=(select dbo.fnBinaryIPv4(@SecondaryDNS)),
NetworkType=@NetworkType,NetworkComment=@NetworkComment,SiteId=@SiteId, 
    DataCenterRow=@DataCenterRow, DataCenterRack=@DataCenterRack, AntiVirusProduct=@AntiVirusProduct, AntiVirusVersion=@AntiVirusVersion, AntiVirusComment=@AntiVirusComment, PassedOSSecurity=@PassedOSSecurity,
               Approved=@Approved,ApprovedBy=@ApprovedBy;

Answer 1

我认为史蒂夫提供的评论是主要方式。

但是，另一种选择是跟踪用户在用户界面中编辑的字段（例如CellEndEdit或CellValueChanged），在c＃中创建动态SQL查询代码（使用StringBuilder和SqlParameters）并最终执行它。

仅更新C＃应用程序中已编辑的字段

1 个答案: