Does Apex wait before moving onto next line

Question

Gentlemen, simple question. Does Apex wait for the DML operation of inserting accounts to complete before moving onto the next line (SOQL statement)?

insert parentAcctList;

List<Id> acctIdList = [SELECT id
                       FROM Account];

for(Id acctId : acctIdList) {
     Contact cont = new Contact(lastName = 'Lee', 
                                firstName = 'Robert', 
                                title = 'General', 
                                AccountId = acctId);
     insert cont; 

Answer 1

Yes.

The code as you've provided is not considered 'bulkified' because it will execute an insert for each acctId.

You'd probably want to add the Contacts to a list, then insert that list outside of your for loop.

i.e.

List<Contact> contactsToInsert = new Map<Contact>();

for(Id acctId : acctIdList) {
    contactsToInsert.add(new Contact(lastName = 'Lee', firstName = 'Robert'));
}

insert contactsToInsert;