How to add hash table values to SQL Table using Powershell

Question

Hi,
I have sharepoint list with four(column1, column2, column3,column4)columns.I am reading the list column values and adding to hashtable. Now I want to add values from hastable to SQL table with four(column1, column2, colum3,column4)columns using powershell.
I have written the following script for single column but I would like to know how to add values for multiple columns.
            if(($key -eq "Column1") )
               $SqlQuery = "INSERT INTO [TableName] ([Column1]) VALUES ('" + $HashTable.Item($key) +"')"
               #Set new object to connect to sql database
               $connection = new-object system.data.sqlclient.sqlconnection
               $Connection.ConnectionString ="server=SQLServerName;database=SQLDBName;Integrated Security = True;"
          $connection #List connection information 
               $connection.open() #Open Connection
             $Cmd = New-Object System.Data.SqlClient.SqlCommand
             $Cmd.CommandText = $SqlQuery
               $Cmd.Connection = $connection
              $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter
              $SqlAdapter.SelectCommand = $SqlCmd
              $DataSet = New-Object System.Data.DataSet
              $SqlAdapter.Fill($DataSet)
              $DataSet.Tables[0]
              $connection.Close()
Can anybody please help me out to accomplish the task? Any help would be greatly appreciated.
AA.

Answer 1

Hi AOk2013,
Not knowledgable on PowercShell, based on my understanding on HashTable in Java, Some modification you can make in your code to achieve your requirement.
If the Keys in HashTable are "Column1","Column2","Column3","Column4", you can reference below.
if(($key -eq "Column1") ) #what is the purposed of this if ?
#$SqlQuery = "INSERT INTO [TableName] ([Term]) VALUES ('" + $HashTable.Item($key) +"')"
#specify the real column names in the table
$SqlQuery = "INSERT INTO [TableName] ([ColumnA],[ColumnB],[ColumnC],[ColumnD]) VALUES ('" + $HashTable.Item("Column1") +"','"+ $HashTable.Item("Column2") +"','"+$HashTable.Item("Column3") +"','"+$HashTable.Item("Column4") +"')"
#Set new object to connect to sql database
$connection = new-object system.data.sqlclient.sqlconnection
$Connection.ConnectionString ="server=SQLServerName;database=SQLDBName;Integrated Security = True;"
$connection #List connection information
$connection.open() #Open Connection
$Cmd = New-Object System.Data.SqlClient.SqlCommand
$Cmd.CommandText = $SqlQuery
$Cmd.Connection = $connection
$SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter
$SqlAdapter.SelectCommand = $SqlCmd
$DataSet = New-Object System.Data.DataSet
$SqlAdapter.Fill($DataSet)
$DataSet.Tables[0]
$connection.Close()
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