I’m having a requirement, where I guess I’ve to use Dynamic DML.But I’m new to Dynamic Apex as well as Dynamic DML.

When I will create a Folder in Box.com server by using API call, I will get a response with Folder ID. (Well I’m able to make the API call and able to get Folder ID)

I am having a custom field named “FolderID__c” in Account object.

So I have to write a method which will take 2 parameter .One is objecttype and other is folderID and it will do the insert operation in that particular objectType.(maybe it’s Account, maybe Contact , which should be dynamic).

What I have done so far:

String IdVar = ApexPages.CurrentPage().getparameters().get('id');  //It will fetch the record ID
String objecttype = IdVar.getSobjectType().getDescribe().getName(); //It will fetch object type from record ID
//By using API call I’m able to get folderID. So I’m having folder ID
//Below is the method, which will update FolderID in our sObject dynamically.
   public static updateFolderId(String folderID){
   Account acc=new Account();
   SObject s = new Account(); 
   update acc;                   

Here I know that I am working on Account object, so I can easily type cast the Account object. But in dynamic we don't know in which object we would be working on, so how to typecast it dynamically.

3 Answers 3


I would suggest instead of using concrete objects such as Account, Contact etc. you use the generic SObject type instead making it fully dynamic, for example:

// create instance of types dynamically
SObjectType accountType = Schema.getGlobalDescribe().get('Account');
SObject acc = accountType.newSObject();

// modify values using .put notation
acc.put('Name','Some Name');

insert acc;
id accId = acc.Id;

// read back dynamically and modify again using .put notation if necessary
acc = Database.query('Select Name From Account Where Id = :accId');

System.debug( acc.get('Name') );

You can use the below method which will use objtype and folderId as two arguments and dynamically create object modify the code for your requirement.

public dynamicSobject(String objtype,String folderId)
    SObjectType objectType  = Schema.getGlobalDescribe().get(objtype);
    SObject obj = objectType.newSObject();

    obj.put('Name','Some Name');

    insert obj;
    id accId = obj.Id;


Please refer the following link for Dynamic DML

  • Hey @codebandit, kudos for answering but can you add some more info to the answer? The thing with links is that they can get broken over time :)
    – Matt Lacey
    Nov 25, 2013 at 9:33
  • @codebandit: I have updated the code in my question. There I'm working on Account. But I want it to be worked dynamically. I'm totally new to dynamic thing, so it'd be great, if you could give some more information. Nov 25, 2013 at 10:03

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