How we can do bulk updates using MAP in Salesforce ?

Hi Hariom,

You can take help from this example:-

Map<Id, String> m = new Map<Id, String>();

Opportunity[] updates = new Opportunity[] {};

for (Id id : m.keySet()) {

updates.add(new Opportunity(Id = id, FieldName__c = m.get(id)));

}
update updates;