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September 22, 2020 17:42
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weekSixHomework - couldn't get the last one!
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public with sharing class WeekSixHomework { | |
public static void soqlPractice() { | |
//1. Below is a SOQL query that should be returning the top 5 Accounts in our org based on Annual Revenue. | |
//Something's not quite right, can you fix the query? | |
List<Account> topFiveAccounts = | |
[SELECT Id, Name, AnnualRevenue | |
FROM Account | |
WHERE AnnualRevenue != 0] | |
ORDER AnnualRevenue DESC | |
LIMIT 5]; | |
//still getting errors at line 11 & 12 | |
System.debug('This should be 5: ' + topFiveAccounts.size()); | |
//2. Here is a query that is missing something. It compiles, but if you try and run this method in Anonymous | |
//you'll get an error when the method tries to use the query results. Fix it! :) | |
List<Contact> contacts = List<Contact> contacts = | |
[SELECT FirstName, LastName, MailingState | |
FROM Contact | |
LIMIT 10]; | |
for (Contact c : contacts) { | |
String name = c.FirstName + ' ' + c.LastName; | |
} | |
//3. Can you write a SOQL query from scratch that will return the top 10 Accounts in the org, ordered by annual | |
//revenue in decending order? Print your results in the debug log. | |
List<Account> accounts = | |
[SELECT Name, AnnualRevenue | |
FROM ACCOUNT | |
ORDER BY AnnualRevenue DESC | |
LIMIT 10]; | |
system.debug(accounts); | |
//4. Can you write a SOQL query that will return all opportunities for all accounts in the topFiveAccounts list that we used | |
//in Number 1? (topFiveAccounts) Hint: If you're stuck, look back a the code in WeekSixClassExercises, getOpenOppsForHotAccounts method | |
// Print your results in the debug log. | |
List<Account> topFive = | |
[Select Id, Name, AnnualRevenue | |
FROM Account | |
ORDER BY AnnualRevenue DESC | |
Limit 5]; | |
//this part queries the opptys from those accounts | |
List<Opportunity> topOpptys = | |
[Select Id, Name, Account.Name | |
FROM Opportunity | |
WHERE Account.Id in:topFive]; | |
system.debug(topOpptys); | |
} | |
public static void forTheLoveOfForLoops() { | |
//1. Take a look at the list and loop below. It's commented out since it can't run as is. | |
// Can you replace the ?? with the number that makes sense based on the comments? | |
// Remove the slashes and compile. | |
// Can you add an extra counter variable so that you can print out how many times the loop ran in total? | |
//This loop should run 5 times | |
integer counter = 0; | |
for (Integer i=0; i<5; i++) { | |
System.debug('i is now: '+i); | |
} | |
//2. Below is a loop that iterates through a list. Can you change it to use the new For Loop syntax? It should print out | |
//each account name in the debug log when you're done. | |
//Use the list size to tell you how many loops, and use indexing to fetch values. If you need help, check the | |
//loopingThroughLists method in WeekThree for hints | |
List<Account> accountList = | |
[SELECT Id, Name | |
FROM Account | |
LIMIT accountListSize]; | |
for (Account a : accountList) { | |
System.debug('Account Name: ' + a.name); | |
} | |
} | |
} |
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