Find Interview Questions for MST Solutions

Role is Record level access and it is not mandatory for all users.

Profile is object level and field level access and it is mandatory for all users.

A Wrapper class is a class whose instances are collection of other objects.

It is used to display different objects on a Visual Force page in same table.

Workflow:

Workflow is automated process that fired an action based on Evaluation criteria and rule criteria.
We can access a workflow across the object.
We cannot perform DML operation on workflow
We cannot query from database

Trigger:

Trigger is a piece of code that executes before or after a record is inserted or updated.
We can access the trigger across the object and related to that objects
We can use 20 DML operations in one trigger.
We can use 20 SOQL’s from data base in one trigger.

<strong>SOQL(Salesforce Object Query Language):</strong>
<ul>
<li>Using SOQL we can Search only on one object at a time.</li>
<li>We can query on all fields of any datatype</li>
<li>We can use SOQL in Triggers and classes.</li>
<li>We can perform DML operation on query results.</li>
</ul>
<strong>SOSL(Salesforce object Search Language):</strong>
<ul>
<li>Using SOSL we can search on many objects at a time.</li>
<li>We can query only on fields whose data type is text,phone and Email.</li>
<li>We can use in calsses but not in Triggers.</li>
<li>We cannot perform DML operation on search result</li>
</ul>

Master Detail relationship is the Parent child relationship. In which Master represents Parent and detail represents Child. If Parent is deleted then Child also gets deleted. Rollup summary fields can only be created on Master records which will calculate the SUM, AVG, MIN of the Child records. Upto 2 allowed for object. Parent field on child is required. Access to parent determines access to children.

Deleting parent automatically deletes child. A child of one master detail relationship cannot be the parent of another. Lookup field on page layout is required.