SALESFROCE DEVELOPER TELEPHONIC QUESTIONS
1 About Your Current project?
2 How can you rate yourself in apex and in visualforce?
3 can we use soql in for loop?if yes how can we use? What is the difference between standard soql and soql forloop?is there any governorlimit?
2 How can you rate yourself in apex and in visualforce?
3 can we use soql in for loop?if yes how can we use? What is the difference between standard soql and soql forloop?is there any governorlimit?
Ans:
SOQL for loops iterate over all of the sObject records returned by a SOQL
query. The syntax of a SOQL for loop is either:
1)for (variable : [soql_query]) {
code_block
}
2)
for (variable_list : [soql_query]) {
code_block
}
Both variable and variable_list must be of
the same type as the sObjects that are returned by the soql_query. As in
standard SOQL queries, the [soql_query] statement can refer to code expressions
in their WHERE clauses using the :
String s = 'Acme';
for (Account a : [SELECT Id, Name from
Account
where Name LIKE :(s+'%')]) {
// Your code
}
SOQL For Loops Versus Standard SOQL
Queries:
SOQL for loops differ from standard SOQL
statements because of the method they use to retrieve sObjects. While the
standard queries discussed in SOQL and SOSL Queries can retrieve either the
count of a query or a number of object records, SOQL for loops retrieve all
sObjects, using efficient chunking with calls to the query and queryMore
methods of the SOAP API. Developers should always use a SOQL for loop to
process query results that return many records, to avoid the limit on heap
size.
4) What is the use of static keyword?can we
declare the variable outside of the class?
Ans:when you declare a method or variable
as static,its initialized only once when a class is loaded .Static variable
aren’t transmitted as part of the view state for a visualforce page.
Static variable are only static with in the
scope of the request.They are not static
across the server,or across the entire organization.
5)What are different accress modifiers?
Ans:public,private,global,protected
6)what is difference b/w public and public
withsharing?
7) Suppose i am create validation rule in
backend,also create validation rule in front end,which one is first fire?
8)
difference b/w lookup and masterdetail?
9)
difference b/w list and set?
10)junction object?
11)In junction object we have two master
details so ,if we delete one master detail what will happen?
12) wht is custom controller and extension?
13)
diff b/w input field and out field tags in
visual force?
14)
whats the use of test class?
15)
how can we deploy the project in salesfroce?
how can we update trigger in test class?
Ø
whts customizations done in current project?
Ø
wht workflow u create in current project?
Ø
how can
pass variable from class to visualforce page?
Ø
what is content management?
Ø
how can we send content to customers?
Ans: A content
delivery allows you to easily convert
documents such as Microsoft® PowerPoint and Word files into an optimized
web-based version for easy online viewing. Once you create your delivery, you
can send its encrypted URL to any recipient, such as leads, customers,
partners, and colleagues, and then track how often the content is viewed or
downloaded. In addition to tracking, content deliveries provide several
benefits over sending files as attachments, such as giving you control over how
long the delivery is available to viewers and whether a viewer can download a
file or see it online only
Ø
in content management files and libaraies ,which
one is mandatory?
Ø
expalin about remote action?
Defines Apex controller methods that
javascript code can call from a visualforce page via javascript remoting.The
method must be static and either public or global.
