Can SomeOne Explain the working/control flow

Question

trigger Oldtrigger on Contact (before update,after insert) {

for (Contact account : Trigger.new) {

Contact oldAccount = Trigger.oldMap.get(account.ID);

system.debug('⌗⌗⌗⌗⌗'+oldAccount);

}

How is it working and where I can see the output.

Nishad K · Answer

Hi Rohit,

Trigger.oldMap is only available in update and delete triggers. so you can't use in after insert,

See the below links:

Regards,

Apex