Firstly, Bucket field is used in report not in salesforce

It is used for catogariesed the record without using formula according to user needs

Try this………. By using BackSlash ”

public class ContactSearch {

public static list<contact> searchForContacts(string lastname ,string mailingCode)
{
String query = ‘select id, name from contact where lastname =” +lastname+ ” and MailingPostalCode = ”+mailingCode+”’;
Contact[] myContacts =…[Read more]

sObject is a generic abstract type that corresponds to any persisted object type. The generic sObject can be cast into a specific sObject type, such as an account or the Invoice_Statement__c custom object.

Data loss may cause due to following reasons:
Changing data and date-time.
Altering to percent, number and currency from other data types.
Changing from multi-select picklist, checkbox, auto number to other types.
Altering to multi-select picklist from any type except picklist.
Changing to auto-number except from text.

Yes.

https://www.salesforcetutorial.com/sfdc-admin-certification-preparation-2/

recursive trigger occurs when code is executed again and again and exceeds CPU time. To avoid it create a class with a static Boolean variable which return true or false value by default it return true value:

public Class checkRecursive{
private static boolean run = true;
public static boolean runOnce(){
if(run){
run=false;
return…[Read more]