2017-01-16 20:08:27 +00:00
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Function Get-ComputerNameFromInstance {
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[CmdletBinding()]
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Param(
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[Parameter(Mandatory = $false,
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HelpMessage = 'SQL Server instance.')]
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[string]$Instance
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)
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If ($Instance){$ComputerName = $Instance.split('\')[0].split(',')[0]}
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else{$ComputerName = $env:COMPUTERNAME}
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Return $ComputerName
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}
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Function Get-SQLConnectionObject {
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[CmdletBinding()]
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Param(
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[Parameter(Mandatory = $false,
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HelpMessage = 'SQL Server or domain account to authenticate with.')]
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[string]$Username,
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[Parameter(Mandatory = $false,
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HelpMessage = 'SQL Server or domain account password to authenticate with.')]
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[string]$Password,
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[Parameter(Mandatory = $false,
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HelpMessage = 'SQL Server instance to connection to.')]
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[string]$Instance,
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[Parameter(Mandatory = $false,
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HelpMessage = 'Dedicated Administrator Connection (DAC).')]
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[Switch]$DAC,
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[Parameter(Mandatory = $false,
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HelpMessage = 'Default database to connect to.')]
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[String]$Database,
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[Parameter(Mandatory = $false,
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HelpMessage = 'Connection timeout.')]
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[string]$TimeOut = 1
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)
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Begin {
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if($DAC){$DacConn = 'ADMIN:'}else{$DacConn = ''}
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if(-not $Database){$Database = 'Master'}
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} Process {
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if (-not $Instance) {
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$Instance = $env:COMPUTERNAME
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}
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$Connection = New-Object -TypeName System.Data.SqlClient.SqlConnection
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if(-not $Username) {
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$AuthenticationType = "Current Windows Credentials"
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$Connection.ConnectionString = "Server=$DacConn$Instance;Database=$Database;Integrated Security=SSPI;Connection Timeout=1"
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}
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if ($username -like "*\*") {
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$AuthenticationType = "Provided Windows Credentials"
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$Connection.ConnectionString = "Server=$DacConn$Instance;Database=$Database;Integrated Security=SSPI;uid=$Username;pwd=$Password;Connection Timeout=$TimeOut"
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}
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if (($username) -and ($username -notlike "*\*")) {
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$AuthenticationType = "Provided SQL Login"
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$Connection.ConnectionString = "Server=$DacConn$Instance;Database=$Database;User ID=$Username;Password=$Password;Connection Timeout=$TimeOut"
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}
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return $Connection
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} End {
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}
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}
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Function Get-SQLQuery {
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[CmdletBinding()]
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Param(
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[Parameter(Mandatory = $false,
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HelpMessage = 'SQL Server or domain account to authenticate with.')]
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[string]$Username,
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[Parameter(Mandatory = $false,
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HelpMessage = 'SQL Server or domain account password to authenticate with.')]
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[string]$Password,
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[Parameter(Mandatory = $false,
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HelpMessage = 'SQL Server instance to connection to.')]
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[string]$Instance,
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[Parameter(Mandatory = $false,
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HelpMessage = 'SQL Server query.')]
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[string]$Query,
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[Parameter(Mandatory = $false,
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HelpMessage = 'Connect using Dedicated Admin Connection.')]
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[Switch]$DAC,
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[Parameter(Mandatory = $false,
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HelpMessage = 'Default database to connect to.')]
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[String]$Database,
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[Parameter(Mandatory = $false,
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HelpMessage = 'Connection timeout.')]
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[int]$TimeOut,
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[Parameter(Mandatory = $false,
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HelpMessage = 'Return error message if exists.')]
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[switch]$ReturnError
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)
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Begin {
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$TblQueryResults = New-Object -TypeName System.Data.DataTable
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} Process {
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if($DAC){$Connection = Get-SQLConnectionObject -Instance $Instance -Username $Username -Password $Password -TimeOut $TimeOut -DAC -Database $Database}
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else{$Connection = Get-SQLConnectionObject -Instance $Instance -Username $Username -Password $Password -TimeOut $TimeOut -Database $Database}
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$ConnectionString = $Connection.Connectionstring
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$Instance = $ConnectionString.split(';')[0].split('=')[1]
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if($Query) {
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$Connection.Open()
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2017-01-17 16:43:39 +00:00
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"$Instance : Connection Success."
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2017-01-16 20:08:27 +00:00
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$Command = New-Object -TypeName System.Data.SqlClient.SqlCommand -ArgumentList ($Query, $Connection)
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try {
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$Results = $Command.ExecuteReader()
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$TblQueryResults.Load($Results)
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} catch {
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# pass
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}
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$Connection.Close()
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$Connection.Dispose()
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}
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else{'No query provided to Get-SQLQuery function.';Break}
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} End {
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if($ReturnError){$ErrorMessage}
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else{$TblQueryResults.Column1}
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}
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}
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