with powershell i'm passing queries to sql in a loop. how can i cumulate what i'm receiving from sql (datatables) ?

hello,

in a loop i'm passing queries to sql. ok, i'm receiving the responses.
now i'm trying to group in a datatable all the respoinses i'm receiving which are datatables.
i've created the same datatable in order to be able to add to it but this is not working.

i need help.

$allmyResulst =
    $allResults = New-Object System.Data.DataTable
    $allResults.Columns.Add("PersonID",[System.Type]::GetType("System.Int32"))
    $allResults.Columns.Add("firstname",[System.Type]::GetType("System.String"))
    $allResults.Columns.Add("lastname",[System.Type]::GetType("System.String"))

foreach($aline in $allFileLines)
{
     $query = "Select PersonID, firstname, lastname, email from table where firstname='lala'
     $results = pass-queryagainstDBserver $theConnection $query
     # ^ i receive my results ok
     $allresults.rows.add($results)    <- this is not adding my new lines:
}

thank you in advance
Erwin PombettAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Dustin SaundersDirector of OperationsCommented:
Without testing, it looks like you're trying to add a DataTable to DataTable.Rows (and they're different object types).

What object type is returned by your custom function, DataTable?

Do your results have the same number of columns, because it looks like you're selecting 4 columns and adding to a table with 3.

Try this, to create a compatible row and fill it with values from a differing table, then add it back to the main table.
foreach($aline in $allFileLines)
{
     $query = "Select PersonID, firstname, lastname, email from table where firstname='lala'"
     $results = pass-queryagainstDBserver $theConnection $query 
     # ^ i receive my results ok 
     foreach ($thisRow in $results.Rows)
     {
        $addRow = $allResults.NewRow()
        $addRow["PersonID"] = $thisRow.PersonID
        $addRow["firstname"] = $thisRow.firstname
        $addRow["lastname"] = $thisRow.lastname
        $allResults.Rows.Add($addRow)
     }
}

Open in new window

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Erwin PombettAuthor Commented:
Hello Dustin,

thank you for your reply,

indeed i had forgotten to  add a column.
ok, indeed i could copy one Datarow from one Datatable to the other. Creating a new datarow works.

thank you.

Toshi
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Powershell

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.