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PowerShell Scripting to Replicate Sybase Data to MySQL

Write a simple PowerShell script to replicate Sybase data to a MySQL database.

The CData Cmdlets for Sybase offer live access to Sybase data from within PowerShell. Using PowerShell scripts, you can easily automate regular tasks like data replication. This article will walk through using the CData Cmdlets for Sybase and the CData Cmdlets for MySQL in PowerShell to replicate Sybase data to a MySQL database.

After obtaining the needed connection properties, accessing Sybase data in PowerShell and preparing for replication consists of four basic steps.

To authenticate with Sybase, set User and Password. Additionally, set IntegratedSecurity; to true to use Windows authentication otherwise, Sybase authentication is used. Set the Server and Database properties. To secure connections with TLS/SSL, set Encrypt to true.

Collecting Sybase Data

  1. Install the module:

    Install-Module SybaseCmdlets
  2. Connect to Sybase:

    $sybase = Connect-Sybase -User $User -Password $Password -Server $Server -Database $Database
  3. Retrieve the data from a specific resource:

    $data = Select-Sybase -Connection $sybase -Table "Products"

    You can also use the Invoke-Sybase cmdlet to execute pure SQL-92 statements:

    $data = Invoke-Sybase -Connection $sybase -Query 'SELECT * FROM Products WHERE ProductName = @ProductName' -Params @{'@ProductName'='Konbu'}
  4. Save a list of the column names from the returned data.

    $columns = ($data | Get-Member -MemberType NoteProperty | Select-Object -Property Name).Name

Inserting Sybase Data into the MySQL Database

With the data and column names collected, you are ready to replicate the data into a MySQL database.

  1. Install the module:

    Install-Module MySQLCmdlets
  2. Connect to MySQL, using the server address and port of the MySQL server, valid user credentials, and a specific database with the table in which the data will be replicated:

    $mysql = Connect-MySQL -User $User -Password $Password -Database $Database -Server $Server -Port $Port
  3. Loop through the Sybase data, store the values, and use the Add-MySQL cmdlet to insert the data into the MySQL database, one row at a time. In this example, the table will need to have the same name as the Sybase resource (Products) and to exist in the database.

    $data | % { $row = $_ $values = @() $columns | % { $col = $_ $values += $row.$($col) } Add-MySQL -Connection $mysql -Table "Products" -Columns $columns -Values $values }

You have now replicated your Sybase data to a MySQL database. This gives you freedom to work with Sybase data in the same way that you work with other MySQL tables, whether that is performing analytics, building reports, or other business functions.

Notes

  • Once you have connected to Sybase and MySQL in PowerShell, you can pipe command results to perform the replication in a single line:

    Select-Sybase -Connection $sybase -Table "Products" | % { $row = $_ $values = @() $columns | % { $col = $_ $values += $row.$($col) } Add-MySQL -Connection $mysql -Table "Products" -Columns $columns -Values $values }
  • If you wish to replicate the Sybase data to another database using another PowerShell module, you will want to exclude the Columns, Connection, and Table columns from the data returned by the Select-Sybase cmdlet since those columns are used to help pipe data from one CData cmdlet to another:

    $columns = ($data | Get-Member -MemberType NoteProperty | Select-Object -Property Name).Name | ? {$_ -NotIn @('Columns','Connection','Table')}