根据字段值排除项目

Question

我使用以下脚本创建了一个视图，但其中一个字段正在撤回我不需要的信息。在 'IsServer' 列中，服务器项标记为 1，非服务器项标记为 0。是否可以创建视图并排除标记为 1 的服务器项在 IsServer 列？我不确定如何将它构建到创建视图脚本中。

CREATE VIEW [dbo].[vw_Cherwell_Machines] AS 
SELECT dbo.rptComputers.HostName, 
       dbo.rptComputers.Vendor, 
       dbo.tblComputer.IsVirtual, 
       dbo.rptComputers.ProcessorCount, 
       dbo.tblComputer.IsServer, 
       dbo.rptComputers.BiosSerialNumber, 
       dbo.rptComputers.PhysicalMemory, 
       dbo.rptComputers.ProcessorType, 
       dbo.rptComputers.ProcessorSpeed, 
       dbo.rptComputers.MostFrequentUser, 
       dbo.tblComputer.Domain, 
       dbo.rptComputers.ClientVersion, 
       dbo.rptComputers.ClientInstallDate, 
       dbo.rptComputers.ClientConfigurationName, 
       dbo.rptComputers.BiosVersion, 
       dbo.rptComputers.BiosDate, 
       dbo.rptComputers.Manufacturer, 
       dbo.rptComputers.Model, 
       dbo.rptComputers.IsPortable, 
       dbo.rptComputers.OperatingSystem, 
       dbo.tblComputer.OSServicePack,
       dbo.rptComputers.ComputerStatusCode, 
       dbo.rptComputers.IPAddress AS 'MultipleIPAddress', 
                
CASE WHEN PATINDEX ('%[, ]%',dbo.rptComputers.IPAddress) > 0 THEN 
       left(dbo.rptComputers.IPAddress,(PATINDEX('%[, ]%',dbo.rptComputers.IPAddress))-1) 
       ELSE dbo.rptComputers.IPAddress 
       END  AS 'IPAddress',
                
       dbo.rptComputers.LastScanDate

FROM dbo.rptComputers INNER JOIN dbo.tblComputer ON dbo.rptComputers.CID = dbo.tblComputer.CID 
     AND dbo.rptComputers.ComputerID = dbo.tblComputer.ComputerID

GROUP BY dbo.rptComputers.HostName, 
         dbo.tblComputer.IsVirtual, 
         dbo.rptComputers.Vendor, 
         dbo.rptComputers.ProcessorCount, 
         dbo.rptComputers.BiosSerialNumber, 
         dbo.tblComputer.IsServer, 
         dbo.rptComputers.PhysicalMemory,
         dbo.rptComputers.ProcessorType, 
         dbo.rptComputers.ProcessorSpeed, 
         dbo.rptComputers.MostFrequentUser, 
         dbo.tblComputer.Domain,
         dbo.rptComputers.ClientVersion, 
         dbo.rptComputers.ClientInstallDate, 
         dbo.rptComputers.ClientConfigurationName, 
         dbo.rptComputers.BiosVersion, 
         dbo.rptComputers.BiosDate, 
         dbo.rptComputers.Manufacturer, 
         dbo.rptComputers.Model, 
         dbo.rptComputers.IsPortable, 
         dbo.rptComputers.OperatingSystem, 
         dbo.tblComputer.OSServicePack,
         dbo.rptComputers.ComputerStatusCode, 
         dbo.rptComputers.IPAddress, 
         dbo.rptComputers.LastScanDate

Answer 1

您需要过滤视图；即，带有 WHERE 子句的视图。像这样的事情（我在评论中标记了我添加到您的代码中的 begin/end）：

CREATE VIEW [dbo].[vw_Cherwell_Machines] AS 
SELECT dbo.rptComputers.HostName, 
       dbo.rptComputers.Vendor, 
       dbo.tblComputer.IsVirtual, 
       dbo.rptComputers.ProcessorCount, 
       dbo.tblComputer.IsServer, 
       dbo.rptComputers.BiosSerialNumber, 
       dbo.rptComputers.PhysicalMemory, 
       dbo.rptComputers.ProcessorType, 
       dbo.rptComputers.ProcessorSpeed, 
       dbo.rptComputers.MostFrequentUser, 
       dbo.tblComputer.Domain, 
       dbo.rptComputers.ClientVersion, 
       dbo.rptComputers.ClientInstallDate, 
       dbo.rptComputers.ClientConfigurationName, 
       dbo.rptComputers.BiosVersion, 
       dbo.rptComputers.BiosDate, 
       dbo.rptComputers.Manufacturer, 
       dbo.rptComputers.Model, 
       dbo.rptComputers.IsPortable, 
       dbo.rptComputers.OperatingSystem, 
       dbo.tblComputer.OSServicePack,
       dbo.rptComputers.ComputerStatusCode, 
       dbo.rptComputers.IPAddress AS 'MultipleIPAddress', 
                
CASE WHEN PATINDEX ('%[, ]%',dbo.rptComputers.IPAddress) > 0 THEN 
       left(dbo.rptComputers.IPAddress,(PATINDEX('%[, ]%',dbo.rptComputers.IPAddress))-1) 
       ELSE dbo.rptComputers.IPAddress 
       END  AS 'IPAddress',
                
       dbo.rptComputers.LastScanDate

FROM dbo.rptComputers INNER JOIN dbo.tblComputer ON dbo.rptComputers.CID = dbo.tblComputer.CID 
     AND dbo.rptComputers.ComputerID = dbo.tblComputer.ComputerID
/*begin change*/
WHERE tblComputer.IsServer = 0 
/*end change*/
GROUP BY dbo.rptComputers.HostName, 
         dbo.tblComputer.IsVirtual, 
         dbo.rptComputers.Vendor, 
         dbo.rptComputers.ProcessorCount, 
         dbo.rptComputers.BiosSerialNumber, 
         dbo.tblComputer.IsServer, 
         dbo.rptComputers.PhysicalMemory,
         dbo.rptComputers.ProcessorType, 
         dbo.rptComputers.ProcessorSpeed, 
         dbo.rptComputers.MostFrequentUser, 
         dbo.tblComputer.Domain,
         dbo.rptComputers.ClientVersion, 
         dbo.rptComputers.ClientInstallDate, 
         dbo.rptComputers.ClientConfigurationName, 
         dbo.rptComputers.BiosVersion, 
         dbo.rptComputers.BiosDate, 
         dbo.rptComputers.Manufacturer, 
         dbo.rptComputers.Model, 
         dbo.rptComputers.IsPortable, 
         dbo.rptComputers.OperatingSystem, 
         dbo.tblComputer.OSServicePack,
         dbo.rptComputers.ComputerStatusCode, 
         dbo.rptComputers.IPAddress, 
         dbo.rptComputers.LastScanDate

Documentation: https://docs.microsoft.com/en-us/sql/relational-databases/indexes/create-filtered-indexes?view=sql-server-ver15 Be sure to see the "limitations" section there, in case there's something in your environment which will not work here.

根据字段值排除项目

exclude items based on field value

sql

sql-server

sql-view

sql-server-2019