How to automate script generation using SMO in SQL Server?

Question

I would like to automate script generation (in SSMS --> Tasks --> Generate Scripts) in SSMS 2008. I have read that SQL Server 2008 does not support Database Publishing Wizard (including SQLPUBWIZ SCRIPT) but this automation can be done using SMO in SQL Server 2008. I don't have a clue about SMO and how to do this using SMO, so could you give me some advice (resources etc.) how to begin?

Answer 1

The key to SMO scripting is the Scripter class. All other tools (like SSMS) use this class to generated object creation scripts. There is an example usage on MSDN:

{ 
   //Connect to the local, default instance of SQL Server. 
  Server srv = new Server(); 

   //Reference the AdventureWorks2008R2 database.  
  Database db = srv.Databases["AdventureWorks2008R2"]; 

   //Define a Scripter object and set the required scripting options. 
  Scripter scrp = new Scripter(srv); 
   scrp.Options.ScriptDrops = false; 
   scrp.Options.WithDependencies = true; 

   //Iterate through the tables in database and script each one. Display the script. 
   //Note that the StringCollection type needs the System.Collections.Specialized namespace to be included. 
   Microsoft.SqlServer.Management.Sdk.Sfc.Urn[] smoObjects = new Microsoft.SqlServer.Management.Sdk.Sfc.Urn[1] ;
   foreach (Table tb in db.Tables) {   
      smoObjects[0] = tb.Urn; 
      if (tb.IsSystemObject == false) { 
         System.Collections.Specialized.StringCollection sc;
         sc = scrp.Script(smoObjects); 
         foreach ( string st in sc) { 
            Console.WriteLine(st); 
         } 
      } 
   } 
}

Answer 2

There a few ways of scripting all objects in database, but one of the easiest is to you the SMO tranfer class. Here's some PowerShell code to script out all objects:

add-type -AssemblyName "Microsoft.SqlServer.ConnectionInfo, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91"
add-type -AssemblyName "Microsoft.SqlServer.Smo, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91"
add-type -AssemblyName "Microsoft.SqlServer.SMOExtended, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91"

$sourceSrv = "$env:computername\sql2k8"
$sourceDb = "Northwind"

$server =  new-object ("Microsoft.SqlServer.Management.Smo.Server") $sourceSrv
$db = $server.Databases[$sourceDb]

$transfer = new-object ("Microsoft.SqlServer.Management.Smo.Transfer") $db
$transfer.CopyAllObjects = $true
$transfer.DropDestinationObjectsFirst = $true
$transfer.CopySchema = $true
$transfer.Options.IncludeIfNotExists = $true

$transfer.ScriptTransfer()