尝试将值保存到 Access 数据库，但在尝试 ExecuteNonQuery 时出现错误

Question

我正在尝试使用 Powershell 从 MS Access 数据库中提取 PC 名称列表，提取它们的驱动器大小统计信息（WMI 对象），然后将它们保存回 Access。我不断收到以下错误：

Exception calling "ExecuteNonQuery" with "0" argument(s): "No value given 
for one or more required parameters."
At C:\Users\*******\Desktop\Scripts\AccessUpdate\HDDUpdate.ps1:75 char:5
+     $WriteFreeSpaceCmd.ExecuteNonQuery()
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : OleDbException

这是运行 Windows 10，Access 2016 x64，使用 Visual Studio 代码调试，PowerShell 5.1，NET Framework 4.8，ADE 2016 x64。

我已经检查了所有字段名称，但我不知道该检查什么。我的Google-fu也没用。

$connstr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\jharold\Desktop\Scripts\AccessUpdate\WinHDDTest.accdb;Persist Security Info=False;"  #Change Source to DB location

[reflection.assembly]::LoadWithPartialName("System.Data") | Out-Null
$Conn = New-Object System.Data.OleDb.OleDbConnection

$Conn.ConnectionString = $connstr
$Conn.Open() | Out-Null

#
#  Pull PC names from db and gather HDD info code works fine
#

foreach ($PC in $HDDInfo) {
    $WriteFreeSpaceCmd = New-Object System.Data.OleDb.OleDbCommand
    $WriteFreeSpaceCmd.Connection = $Conn

    $WriteTotalSpaceCmd = New-Object System.Data.OleDb.OleDbCommand
    $WriteTotalSpaceCmd.Connection = $Conn

    $temp1 = "UPDATE Status SET ImportFreeSpace = " + $PC.FreeSpace + " WHERE NetBios_Name = " + $PC.NetBiosInfo
    $WriteFreeSpaceCmd.CommandText = $temp1 

    $temp2 = "UPDATE Status SET ImportTotalSpace = " + $PC.TotalSpace + " WHERE NetBios_Name = " + $PC.NetBiosInfo
    $WriteTotalSpaceCmd.CommandText = $temp2    

    $WriteFreeSpaceCmd.ExecuteNonQuery() 
    $WriteTotalSpaceCmd.ExecuteNonQuery() 
}

我希望$PC.FreeSpace和$PC.TotalSpace以文本形式保存到相应PC的ImportFreeSpace和ImportTotalSpace。相反，它一运行 ExecuteNonQuery() 就会出错。

Answer 1

UPDATE 命令中的值应该用引号引起来。喜欢：

$temp1 = "UPDATE Status SET ImportFreeSpace = '{0}' WHERE NetBios_Name = '{1}' " -f $PC.FreeSpace, $PC.NetBiosInfo

尝试将值保存到 Access 数据库，但在尝试 ExecuteNonQuery 时出现错误

Trying to save values to an Access DB, but I'm getting an error when I try ExecuteNonQuery

powershell

ms-access

oledbexception

oledbcommand