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PowerShell でIBM Cloud SQL Query Data データをCSV に落としてみた

標準PowerShell cmdlets を使ってIBM Cloud SQL Query テーブルにアクセス。

CData Cmdlets Module for IBM Cloud SQL Query は、直感的なIBM Cloud SQL Query データ連携を提供する標準cmdlet です。 本記事では、IBMCloud Cmdlets を使ったサンプルを提供します。

Creating a Connection to Your IBM Cloud SQL Query Data

IBM Cloud uses the OAuth and HMAC authentication standards. See the "Getting Started" chapter of the help documentation for a guide to using OAuth.

$conn = Connect-IBMCloud  -Api Key "$Api Key" -Instance CRN "$Instance CRN" -Region "$Region" -Schema "$Schema" -OAuth Client Id "$OAuth Client Id" -OAuth Client Secret "$OAuth Client Secret"

Selecting Data

Follow the steps below to retrieve data from the Jobs table and pipe the result into to a CSV file:

Select-IBMCloud -Connection $conn -Table Jobs | Select -Property * -ExcludeProperty Connection,Table,Columns | Export-Csv -Path c:\myJobsData.csv -NoTypeInformation

You will notice that we piped the results from Select-IBMCloud into a Select-Object cmdlet and excluded some properties before piping them into an Export-Csv cmdlet. We do this because the CData Cmdlets append Connection, Table, and Columns information onto each "row" in the result set, and we do not necessarily want that information in our CSV file.

The Connection, Table, and Columns are appended to the results in order to facilitate piping results from one of the CData Cmdlets directly into another one.

Deleting Data

The following line deletes any records that match the criteria:

Select-IBMCloud -Connection $conn -Table Jobs -Where "UserId = user@domain.com" | Remove-IBMCloud

Inserting and Updating Data

The cmdlets make data transformation easy as well as data cleansing. The following example loads data from a CSV file into IBM Cloud SQL Query, checking first whether a record already exists and needs to be updated instead of inserted.

Import-Csv -Path C:\MyJobsUpdates.csv | %{
  $record = Select-IBMCloud -Connection $IBMCloud -Table Jobs -Where ("Id = `'"+$_.Id+"`'")
  if($record){
    Update-IBMCloud -Connection $ibmcloud -Table Jobs -Columns ("Id","Status") -Values ($_.Id, $_.Status) -Where ("Id = `'"+$_.Id+"`'")
  }else{
    Add-IBMCloud -Connection $ibmcloud -Table Jobs -Columns ("Id","Status") -Values ($_.Id, $_.Status)
  }
}

As always, our goal is to simplify the way you connect to data. With cmdlets users can install a data module, set the connection properties, and start building. Download Cmdlets and start working with your data in PowerShell today!

 
 
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