Power shell for sql server

PowerShell for SQL Server
Leonard Mwangi MCDBA, MCTS
eTek Global Inc.

Agenda
Introduction to PowerShell
Lifecycle
Language
Usability
PowerShell with SQL
PowerShell difficulties

Introduction
Command-line shell with an associated scripting language for automation.
Heavily integrated with .NET Framework.
Provides full access to COM and WMI allowing local and remote administration of Windows Systems.
Commands referred to as cmdlets - .NET Classes allowing implementation of specific operations.
Utilized by most Microsoft applications and Systems (Windows Server, MSSQL, Exchange Server, SCOM, SCDMP etc.

Lifecycle
Code name “Monad” – Sept 2003
Version 1.0 released 2006 for Windows XP SP2/SP3
Version 2.0 Integrated with Windows 7 and Window Server 2008 R2.
Downloadable for earlier versions of Windows.
Can execute four kinds of commands.
Cmdlets – specialized commands implementing specific functions.
PowerShell scripts – suffixed as .ps1
PowerShell functions
Executable programs

Language
.Net Aspect
Property -- can get
Method -- can do
CMDLETS
Integrated with command Line
Built with WMI in mind.
Language format – verb-noun
Arranged in hard drives
Variables

Scripting
Getting RAM from Local Machine
Get-WmiObject Win32_ComputerSystem
Getting RAM from Local Machine
Option ExplicitDim objWMIService, objComputer, colComputerDim strLogonUser, strComputer
strComputer = "."
Set objWMIService = GetObject("winmgmts:" _& "{impersonationLevel=impersonate}!quot; _ & strComputer & " ootcimv2") Set colComputer = objWMIService.ExecQuery _("Select * from Win32_ComputerSystem")
For Each objComputer in colComputerWscript.Echo "System Name: " & objComputer.Name _& vbCr & "Total RAM " & objComputer.TotalPhysicalMemoryNext
WScript.Quit

Usability - basics
Functions like DOS
Store everything as a drive
psdrive
Variables
$varname
Displaying you variables after assigning it
$dt = Get-Date | $dt – Wont work
$dt = Get-Date ; $dt
Can pass doss command to PowerShell
$varname = "Localhost“
Piping and Pipeline
Get-Service | Sort-Object -Property ServiceType | Format-Table name, ServiceType, status, CanStop, -Auto
Filtering
Get-Service | Where {$_.Status -eq "Stopped"} | ft name, status, CanStop -AutoSize
Looping
For-each {$_.} -- current iteration of the loop

Usability - basics
Get-Member
Using Alias
New-Alias myalias Get-Service
Reference previously used commands
get-history
Signing Scripts – configured to run in most secure mode (Restricted)
AllSigning, RemoreSigned, UnRestricted
HELP

PowerShell & SQL
SQLPS – accessible from any where in SSMS
dir| Get-Member
From a table
dir | ft Name, RowCount, State, Owner, Triggers
SQL Server Management Objects (SMO) – Objects collections for SQL Server Management.
[reflection.assembly]::LoadWithPartialName("Microsoft.SQLServer.SMO")
Assign variables

Useful SMO’s

Question & Answer Session

References
http://technet.microsoft.com/en-us/library/ee221100.aspx - Owners Manual
http://technet.microsoft.com/en-us/library/ee176868.aspx - PowerShell shortcuts
http://technet.microsoft.com/en-us/scriptcenter/powershell.aspx -- PowerShell
http://www.microsoft.com/downloads/en/details.aspx?FamilyId=DF8ED469-9007-401C-85E7-46649A32D0E0&displaylang=en – PowerShell cheatSheet
http://gallery.technet.microsoft.com/ScriptCenter/en-us/ - Microsoft Script Center
http://msdn.microsoft.com/en-us/library/microsoft.sqlserver.management.smo.aspx - SMO Classes

Thank you for coming
Email:- leonard.mwangi@etekglobalinc.com
Site:- www.etekglobalinc.com
Blog:- www.geekswithblogs.netleonardm
LinkedIn:- http://www.linkedin.com/in/lmundia
Twitter:- lmundia

Power shell for sql server

by Leonard Mwangi on Oct 04, 2010

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Power shell for sql server — Presentation Transcript