1 Powershell脚本2 SQL表

Question

我在SQL Server Management Studio中填充第二张表时遇到问题。 我的第一个表ServerList包含以下屏幕快照中的所有信息。 然后，第二个表ServerDrives应该包含有关硬盘驱动器规格的所有信息（免费，已使用，字母以及与硬盘驱动器相连的服务器）。

当前，我将Powershell脚本从ServerList拉出ServerName列中的所有值，并将信息推送到Powershell脚本中，然后该脚本将填充OS，RAM等。

问题：我不确定如何使用相同的ServerID脚本使用表ServerList的相同主键ServerID填充ServerDrives表。 因为我希望该表中的每一行对于ServerList每个服务器都是一个。 我目前在脚本中有一种收集硬盘信息的方法，但是我不确定如何使用该信息来填充我的空表

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目标：具有服务器ID（在主键ServerList ）和ServerDriveID（在主键ServerDrives ）是对于相同的服务器（QAGGAPP01，QAGGAPP03，QAGGAPP05，和等等）。 要使用适当的硬盘驱动器号和规格将变量$disks推入数据库表ServerDrives 。 每个服务器有1或2个硬盘驱动器。

码：

    Write-Output " `n Start of Hal0 `n";

    #Start of Server Connection
    $connectionString = "Server=QAUTILITYDB01;Database=Hal0Test;Integrated Security=True;"
    $connection = New-Object System.Data.SqlClient.SqlConnection
    $connection.ConnectionString = $connectionString
    $connection.Open()
    $command = $connection.CreateCommand()

    $ServerArray = [System.Collections.ArrayList]@()
    $query = "SELECT ServerName FROM ServerList"
    $command.CommandText = $query
    $ServerNames = $command.ExecuteReader()

    $table = new-object “System.Data.DataTable”
    $table.Load($ServerNames)

    $ServerArray = $table | select -Expand ServerName

    $ServerArray | ForEach-Object {
        #$ServerArray returns each server name

        #Operating System
        $SystemInfo = Get-WmiObject -Class Win32_OperatingSystem -computername  $_
        $os = Get-WmiObject -Class Win32_OperatingSystem -Computer $_ 
        #Server's Memory (RAM) Usage Average
        $TotalRAM = [math]::round($SystemInfo.TotalVisibleMemorySize/1MB,4)
        $FreeRAM =  [math]::round($SystemInfo.FreePhysicalMemory/1MB,3)
        $UsedRAM = $TotalRAM - $FreeRAM
        $RAMPercentFree = [math]::round(($FreeRAM / $TotalRAM) * 100,3)
        $RAMPercentUsed = [math]::round(($UsedRAM / $TotalRAM) * 100,3)
        #Server's CPU (Proccess) Usage Average
        $cpuAVG = Get-WmiObject -computername $_ win32_processor |     Measure-Object -property LoadPercentage -Average | Select Average 

        #Server's Hard Drives (MB) Free/Used
        $disks = Get-WmiObject -Class Win32_LogicalDisk -Computer $_ |
             Where-Object {$_.DriveType -eq 3} |
             ForEach-Object {
                 '{0} {1:D} MB Free/{2:D} MB Used' -f $_.DeviceID,
                     [int]($_.FreeSpace/1MB), [int]($_.Size/1MB)
             }

        #Value Types being pushed to Server
        $command.CommandText = "UPDATE ServerList SET FQDN = '$_',
        TotalRAM= '$TotalRAM' ,
        FreeRAM= '$FreeRAM' ,
        UsedRAM= '$UsedRAM' ,
        RAMPercentFree = '$RAMPercentFree' ,
        RAMPercentUsed= '$RAMPercentUsed' ,
        OS = '$($os.Caption)' WHERE ServerName LIKE '$($os.PSComputerName)%';"
        $result = $command.ExecuteNonQuery()
}

    Write-Output "`n End of Hal0";

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ServerDrives：

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HTML预览，我只在powershell代码中添加了代码，只是为了更轻松地查看推送到服务器的内容，而不必每次都重新打开表：

Answer 1

当您要求服务器名称时，是否不能仅获取主键？

$query = "SELECT ServerID, ServerName FROM ServerList"

现在，您可以使用WHERE ServerID = $CurrentServerID或类似的名称。

您没有运行任何INSERT语句。 这是一个SELECT，后跟UPDATE。 如果您需要主键，只需向服务器询问即可。

Answer 2

根据另一个注释中的建议获取ServerID 。 您可以按以下方式更改代码：

• 使用“ SELECT ServerID，ServerName FROM ServerList”获取名称和ID
• 管道生成的表并分别读取$ ServerName和$ ServerID
• 遍历磁盘以插入/更新$ ServerID时使用此信息

执行：

#Start of Server Connection
$ConnectionString = "<CONNECTION>"
$Connection = New-Object System.Data.SqlClient.SqlConnection
$Connection.ConnectionString = $ConnectionString
$Connection.Open()
$Command = $Connection.CreateCommand()
# Selects server id and name and puts it into the table
$ServerInfoQuery = "SELECT ServerID, ServerName FROM ServerList"
$Command.CommandText = $ServerInfoQuery
$ServerInfoReader = $Command.ExecuteReader()
$ServerInfo = New-Object System.Data.DataTable
$ServerInfo.Load($ServerInfoReader)    
$ServerInfo | ForEach-Object {
    # Read Name and ID from table
    $ServerName = $_.ServerName
    $ServerID = $_.ServerID
    # Operating System
    $SystemInfo = Get-WmiObject -Class Win32_OperatingSystem -computername  $ServerName
    $os = Get-WmiObject -Class Win32_OperatingSystem -Computer $ServerName        
    $TotalRAM = [math]::round($SystemInfo.TotalVisibleMemorySize/1MB,4)
    $FreeRAM =  [math]::round($SystemInfo.FreePhysicalMemory/1MB,3)
    $UsedRAM = $TotalRAM - $FreeRAM
    $RAMPercentFree = [math]::round(($FreeRAM / $TotalRAM) * 100,3)
    $RAMPercentUsed = [math]::round(($UsedRAM / $TotalRAM) * 100,3)
    # Server's CPU (Proccess) Usage Average
    $cpuAVG = Get-WmiObject -computername $ServerName win32_processor | Measure-Object -property LoadPercentage -Average | Select Average         
    # Value Types being pushed to Server
    $Command.CommandText = "
        UPDATE 
            ServerList 
        SET 
            FQDN = '$ServerName',
            TotalRAM= '$TotalRAM',
            FreeRAM= '$FreeRAM',
            UsedRAM= '$UsedRAM',
            RAMPercentFree = '$RAMPercentFree',
            RAMPercentUsed= '$RAMPercentUsed',
            OS = '$($os.Caption)' 
        WHERE 
            ServerID = $ServerID"       
    $result = $Command.ExecuteNonQuery()

    # Server's Hard Drives (MB) Free/Used
    $disks = Get-WmiObject -Class Win32_LogicalDisk -Computer $ServerName | Where-Object {$_.DriveType -eq 3} | ForEach-Object {
        $DriveLetter = $_.DeviceID
        $DiskFree = [Math]::Round($_.FreeSpace/1MB, 0)        
        $DiskUsed = [Math]::Round($_.Size/1MB, 0)
        $Command.CommandText = "
            IF EXISTS (SELECT * FROM ServerDrives WHERE ServerID = '$ServerID' AND DriveLetter = '$DriveLetter')
            BEGIN
                UPDATE
                    ServerDrives
                SET
                    DriveLetter = '$DriveLetter',
                    DiskFree = '$DiskFree',
                    DiskUsed = '$DiskUsed',
                    ServerID = '$ServerID'
                WHERE
                    ServerID = '$ServerID' AND DriveLetter = '$DriveLetter' 
            END
            ELSE
            BEGIN
                INSERT INTO 
                    ServerDrives (DriveLetter, DiskFree, DiskUsed, ServerID) 
                VALUES 
                    ('$DriveLetter','$DiskFree','$DiskUsed', '$ServerID')
            END"
        $command.ExecuteNonQuery()
    }
}