Linq2Sql InsertAllOnSubmit Vs多个InsertOnSubmit对于大量的行

Question

如果我说例如100,000行插入/更新/删除，这个数字将不断增长。以下哪一种是最好的方法，或者它没有任何区别。

的PeopleRepository AddPeople实施

public void AddPeople(IEnumerable i) 
{ 
    _Database.people.InsertAllOnSubmit(i); 
} 

的PeopleRepository addPerson的实施

public void AddPerson(Person p) 
{ 
    _Database.people.InsertOnSubmit(p); 
} 

的PeopleRepository保存实施

public void Save() 
{ 
    _Database.SubmitChanges(); 
} 

InsertAllOnSubmit实施

PeopleRepository repo = new PeopleRepository(); 

List<Person> everyone = new List<Person>(); 

foreach (var p in myObject.GetPeople()) 
{ 
    Person person = new Person 
    { 
     person.Name = p.Name 
    }; 

    everyone.Add(person); 
} 

repo.AddPeople(everyone); 
repo.Save(); 

InsertOnSubmit实施

PeopleRepository repo = new PeopleRepository(); 

foreach (var p in myObject.GetPeople()) 
{ 
    Person person = new Person 
    { 
     person.Name = p.Name 
    }; 

    repo.AddPerson(person); 
    repo.Save(); 
} 

Answer 1

如果你有这样大量的变化，你可能会考虑在表达一个SQL UPDATE或INSERT语句的变化。