如何在 PowerShell 的 Select-Object 中使用 Sort-Object 和 Where-Object？

Question

我正在为 Azure PowerShell 3.1.0 编写 PowerShell 脚本：

从JSON
根据 MigratedFlag='Y' 的条件循环内容并按 OrderNo
正在使用 Invoke-Sqlcmd

Location

如果我的位置值等于执行的脚本然后更新MigratedFlag=N

除了第 2 步，我可以执行所有步骤，即按 OrderNo 排序并在 MigratedFlag、[=19= 上添加条件]

这里是 JSON 内容的片段：

[
    {
        "OrderNo":  "1",
        "Location":  "ETS\Stage_PS\FS_PS_CUSTOMER.sql",
        "MigratedFlag":  "Y",
        "Description":  "Creation of STG_PS_FS.PS_CUSTOMER"
    },
    {
        "OrderNo":  "2",
        "Location":  "ETS\Stage_PS\FS_PS_CUST_ADDRESS.sql",
        "MigratedFlag":  "Y",
        "Description":  "Creation of STG_PS_FS.PS_CUST_ADDRESS"
    },
    {
        "OrderNo":  "3",
        "Location":  "ETS\Stage_PS\FS_PS_CUST_ADDR_SEQ.sql",
        "MigratedFlag":  "Y",
        "Description":  "Creation of STG_PS_FS.PS_CUST_ADDR_SEQ"
    }
]

下面是我正在使用的 PS 脚本，（无法在 Select-Object 中使用 Sort-Object 或 Where-Object）：

$v_JSON = Get-Content '$(system.defaultworkingdirectory)\xxxxx\BuildOrder.json' -raw | ConvertFrom-Json
$v_JSON | Select-Object -Property Location | ForEach {
$Script =  $_.Location
Write-Host "Executing Script"$Script
Invoke-Sqlcmd -ServerInstance "InstanceName" -Database $(database) -Username $(testauto_username)  -Password $(testauto_password) -InputFile $(system.defaultworkingdirectory)$Script
$v_JSON | % {if($_.Location -eq $Script){$_.MigratedFlag='N'}}
$v_JSON | ConvertTo-Json -depth 32| set-content '$(system.defaultworkingdirectory)\xxxxx\BuildOrder.json'
}

Answer 1

只需将它们插入管道之前 Select-Object:

$v_JSON = Get-Content '$(system.defaultworkingdirectory)\xxxxx\BuildOrder.json' -Raw | ConvertFrom-Json
$v_JSON | Sort-Object -Property OrderNo | Where-Object {$_.MigratedFlag -like 'Y'} | Select-Object -Property Location | ForEach {
    $Script =  $_.Location
    Write-Host "Executing Script"$Script
    Invoke-Sqlcmd -ServerInstance "InstanceName" -Database $(database) -Username $(testauto_username)  -Password $(testauto_password) -InputFile $(system.defaultworkingdirectory)$Script
    $v_JSON | % {if($_.Location -eq $Script){$_.MigratedFlag='N'}}
    $v_JSON | ConvertTo-Json -depth 32| set-content '$(system.defaultworkingdirectory)\xxxxx\BuildOrder.json'
}

顺便说一句：您的 Select-Object -Property Location 没那么有用，因为您必须在循环内再次迭代 $V_JSON 才能获得其他属性。我推荐以下优化：

$v_JSON = Get-Content '$(system.defaultworkingdirectory)\xxxxx\BuildOrder.json' -Raw | ConvertFrom-Json
$v_JSON | Sort-Object -Property OrderNo | Where-Object {$_.MigratedFlag -like 'Y'} | ForEach {
    $Script =  $_.Location
    Write-Host "Executing Script: $Script"
    Invoke-Sqlcmd -ServerInstance "InstanceName" -Database $(database) -Username $(testauto_username)  -Password $(testauto_password) -InputFile $(system.defaultworkingdirectory)$Script
    $_.MigratedFlag = 'N'
}
$v_JSON | ConvertTo-Json -depth 32| set-content '$(system.defaultworkingdirectory)\xxxxx\BuildOrder.json'

如何在 PowerShell 的 Select-Object 中使用 Sort-Object 和 Where-Object？

How to use Sort-Object and Where-Object in Select-Object in PowerShell?

powershell

powershell-3.0

azure-powershell

select-object