how to get the RecordType/Id name based on the ID

Question

I'm trying to find out the recordType Name/Id based on the record Id.

Id myid = 'a1aV0000003DzYE'; 
String sObjectType = ((Id)myid).getSobjectType().getDescribe().getName();

//finding recordtype Name/Id ?

Answer 1

Use following methods to get recordtype Name or Id based on the parameters passed to these methods.

public static Id getRecordTypeIdbyName(String objectName, String strRecordTypeName)
    {
        return  Schema.getGlobalDescribe().get(objectName).getDescribe().getRecordTypeInfosByName().get(strRecordTypeName).getRecordTypeId();
    }

    public static String getRecordTypeNameById(String objectName, Id strRecordTypeId)
    {
        return Schema.getGlobalDescribe().get(objectName).getDescribe().getRecordTypeInfosById().get(strRecordTypeId).getName();
    }   

Update

You need to query RecordTypeId through SOQL based on recordId.

SELECT Id, RecordtypeId, RecordType.name FROM Account where Id = '<your id>';