Hi ,

Generic sObject means, it can be of any persisted SFDC objects type.
For ex: Phone is generic type and Samsung,Nokia all are concrete types of Phone.

In SFDC, sObject is generic and Account, Opportunity, CustomObject__c are its concrete type.
Generic sObject abstracts the actual representation of any object assigned to it.

For example…[Read more]

Hi Pooja,

As per Summer 16 release onwards, the limit has been revised .We can have maximum 40 Relationships per Object (2 Master Detail Relationships and 38 Lookup Relationships OR 0 Master Detail Relationships and 40 Lookup Relationships).

Reports in salesforce can only be exported as Formatted Report or Details only.
If a report is exported as Details only, the file format can be set to .xls or .csv.
In case of joined reports, they are always exported as Formatted Reports and Formatted Reports and formatted reports are always exported in .xlsx.

Yes ,we can call another batch class in finish method of a batch class.