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Pipe MariaDB Data to CSV in PowerShell

Use standard PowerShell cmdlets to access MariaDB tables.

The CData Cmdlets Module for MariaDB is a standard PowerShell module offering straightforward integration with MariaDB. Below, you will find examples of using our MariaDB Cmdlets with native PowerShell cmdlets.

Creating a Connection to Your MariaDB Data

The Server and Port properties must be set to a MariaDB server. If IntegratedSecurity is set to false, then User and Password must be set to valid user credentials. Optionally, Database can be set to connect to a specific database. If not set, the tables from all databases are reported.

$conn = Connect-MariaDB  -User "$User" -Password "$Password" -Database "$Database" -Server "$Server" -Port "$Port"

Selecting Data

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

Select-MariaDB -Connection $conn -Table Orders | Select -Property * -ExcludeProperty Connection,Table,Columns | Export-Csv -Path c:\myOrdersData.csv -NoTypeInformation

You will notice that we piped the results from Select-MariaDB 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-MariaDB -Connection $conn -Table Orders -Where "ShipCountry = USA" | Remove-MariaDB

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 MariaDB, checking first whether a record already exists and needs to be updated instead of inserted.

Import-Csv -Path C:\MyOrdersUpdates.csv | %{
  $record = Select-MariaDB -Connection $MariaDB -Table Orders -Where ("Id = `'"+$_.Id+"`'")
  if($record){
    Update-MariaDB -Connection $mariadb -Table Orders -Columns ("ShipName","ShipCity") -Values ($_.ShipName, $_.ShipCity) -Where ("Id = `'"+$_.Id+"`'")
  }else{
    Add-MariaDB -Connection $mariadb -Table Orders -Columns ("ShipName","ShipCity") -Values ($_.ShipName, $_.ShipCity)
  }
}

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!