Basic Salesforce Interview questions part 10

112. Ho can you place an entire visualforce page in a different visualforce page?

Ans - This can be done using include attribute.

113. How can you hard delete records in apex?

Ans - use emptyrecyclebin method as below

    ex-  delete myAccList;

        DataBase.emptyRecycleBin(myAccList);

114. What all data types can a set store?

Ans - A set can store all primitive data types and sObjects but not collections.

115. What is the use of offset keyword in a soql query?

Ans - Using offset keyword return the records starting from desired location in the list. For example if we specify offset 8 then all the records starting from location 9 onwards would be returned.

116. How can you display an image as an field in a detail page of record?

Ans - This can be done using IMAGE function. A url of the image stored in document should be given in image function

117. When a lead is converted into account/contact will the trigger on account/contact fire?

Ans - In set up we can enable or disable whether triggers should run on conversion.

118. What happens to contacts when an account is deleted?

Ans - When an account is deleted all the contacts under it gets deleted.

119. What is an sObject type?

Ans - sObject refers to any object that can be stored i force.com platform database. ex. sObject s = new contact()

120. How many elements can be stored with in a collection(list,set,map)?

Ans - There is no limit on the number of elements that can be stored in a collection. However, we need to consider the heap size limit.