query to a stringString soql ='';
soql = 'select id,name,employee_name__c,employee_city__c from Employee__c where employee_city__c ='+ '\'' + selVal + '\'';
refers to people things. So that would be typically a Lead ID or a Contact ID.
refers to object type things. That would typically be an Account ID or an Opportunity ID.
1. Create a field of URL type let it be Photo
2. Create a field of type formula which takes the formula as:
“IMAGE(Photo__c, “Photo Unavailable”, 200, 200)