Today we continue discussing the best practice from storage engineering:

134) Data migration wizards help movement of data as collections of storage artifacts. With the judicious choice of namespace hierarchy and organizational units, the users are relieved from the syntax of storage artifacts and their operations and view their data as either in transit or at rest.

135) Extract-Transform-Load operations are very helpful when transferring data between data stores. In such cases, it is best to author them via user Interface with the help of designer like tools. Logic for these operations may even be customized and saved as modules.

136) Data transfer does not always have to be to and from the software product. Transfer within the product using its organizational hierarchy could also be supported. For example, object storage provides the convenience of copying bucket of objects at a time even he objects may have any folder path like prefix.







#codingexercise
Segregate odd and even nodes in a linked list

node* segregate(node* root) {

if (root == null) return root;
if (root.next == null) return root;
node* prev = null;
node* current = root;
node* next = current->next;
node* head = root;
node* tail=head;

while (tail->next) tail = tail->next;
node* mid= tail;
while( next && next->next &&
       prev!= mid && current != mid && next != mid) {
prev = current;
current = cut (next, current);
prev.next = current;

tail.next = next;
tail = next;
tail.next = null;
next = current->next;

}

return root;

}

node* cut (node* next, node* current) {
current.next = next.next;
next.next = null;
current = current.next;
return current;
}