Salesforce Summer '18 Sandbox Preview Instructions

Salesforce.com Summer’18 Release Calendar : -

1. Between now and May 4, 2018 all sandbox requests will be routed to Preview Instances for which SFDC Summer’18 platform upgrade will happen on May 4/5, 2018.
2. On May 4, 2018, all incomplete sandbox requests will be reset on a Non-Preview Instance for which SFDC Summer’18 platform upgrade will happen on June 8/9, 2018.

Reference link -

https://www.salesforce.com/blog/2018/04/summer-18-sandbox-preview.html

Color code for PageBlockSection Title Bar in Salesforce

Below is the code for color coding PageBlockSection title bar

<apex:page >
    <style>
        body .bPageBlock .pbBody .red .pbSubheader{
            background-color:red;
        }
        body .bPageBlock .pbBody .grey .pbSubheader{
            background-color:green;
        }          
    </style>
    <apex:pageBlock > 
   <center><h1> Color code for PageBlockSection Title Bar </h1></center><br/>
        <apex:outputPanel styleClass="red" layout="block">
            <apex:pageBlockSection title="first pbs title" id="pb1">
                first section 
            </apex:pageBlockSection>
        </apex:outputPanel>
        <apex:outputPanel styleClass="grey" layout="block">
            <apex:pageBlockSection title="second pbs title" id="pb2">
                second section
            </apex:pageBlockSection>
        </apex:outputPanel>
    </apex:pageBlock>
</apex:page>

Screen shot:

Hope above info might be helpful :-)

What is the difference between the IN and = operator in SOQL Salesforce?

Below is the definition and example for " IN " and " = " operators
 
" : " bind variable for access variable in the query as below

String MyFirstName = 'sampath';
List<Contact> ListOfName = [SELECT FirstName FROM Contact WHERE FirstName =  : MyFirstName];


" = " operator is simple Equal operator in the query as below

List<Contact> ListOfName = [SELECT FirstName FROM Contact WHERE FirstName =  'sampath'];
Note :- gets list of contacts where firstName = sampath (equals to sampath)


" IN " operator in soql for refer LIST or SET direct in the query as below

List<String> lstOfStr = new List<String>{'Sai','Sampath'};
List<Contact> ListOfName = [SELECT FirstName FROM Contact WHERE FirstName IN : lstOfStr];
Note :- here also we use bind ":" operator for access variable value in soql query.



Hope above info might be helpful, thank you :-)