A novel containment scheme called DCLS is proposed to effectively process updates in dynamic XML data. DCLS generalizes the static containment scheme from integer order to vector order and thus completely avoids re-labeling when XML data updating. Moreover, DCLS is compact and efficient regardless of whether the documents are updated or not. On the one hand, DCLS uses integer-based static containment scheme for initial labeling, which yields compact size and excellent query efficiency for static documents. On the other hand, DCLS takes the integer as special vector, which not only deals with the case of document updating, but also achieves high query performance. Most importantly, DCLS can effectively avoid the rapid increase of labeling size for the case of skewed insertions. Experimental results confirm the benefits of this approach compared to previous dynamic containment schemes.