This function will let you create a database connection object for connecting to a Microsoft SQL Server database. It supports the usual parameters; DatabaseServer, DatabaseName, Port and Credential and will return a database connection object.

function New-MsSqlConnection {
Create a new MSSQL database connection.
This function will create a new Microsoft SQL Server database connection and return a database connection object.
New-MsSqlConnection -DatabaseServer dbServer01 -DatabaseName 'myDB'
Author: Øyvind Kallstad
Date: 22.01.2015
Version: 1.0
param (
# Name of server or instance.
[Parameter(Mandatory = $true, Position = 0)]
[string] $DatabaseServer,
# Name of database.
[Parameter(Mandatory = $true, Position = 1)]
[string] $DatabaseName,
# Port to connect to. Default is 1433.
[int] $Port,
# Credential, if not using trusted connection.
[Parameter(Mandatory = $false)]
[System.Management.Automation.Credential()]$Credential = [System.Management.Automation.PSCredential]::Empty
try {
# start building the connection string
$connectionStringBuilder = New-Object 'System.Data.SqlClient.SqlConnectionStringBuilder'
if($Port) {$DatabaseServer = "$($DatabaseServer),$($Port);"}
$connectionStringBuilder.Server = $DatabaseServer
$connectionStringBuilder.Database = $DatabaseName
# if credential parameter is not used, trusted connection will be used
if (-not($PSBoundParameters['Credential'])) {
$connectionStringBuilder.Trusted_Connection = $true
# otherwise create a sqlcredential object
else {
$sqlCred = New-Object 'System.Data.SqlClient.SqlCredential' ArgumentList ($Credential.UserName,$Credential.Password)
# create database connection
$dbConnection = New-Object TypeName 'System.Data.SqlClient.SqlConnection' ArgumentList $connectionStringBuilder.ConnectionString
# if needed, add the sqlcredential object
if($PSBoundParameters['Credential']) {
$dbConnection.Credential = $sqlCred
# open the connection
# return the connection object
Write-Output $dbConnection
catch {
Write-Warning "At line:$($_.InvocationInfo.ScriptLineNumber) char:$($_.InvocationInfo.OffsetInLine) Command:$($_.InvocationInfo.InvocationName), Exception: '$($_.Exception.Message.Trim())'"

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