update anomalies

基本解釋

Relational world is based on error prevention; and normalization is used as a tool to remove duplication and prevent update anomalies.
關(guān)系數(shù)據(jù)庫的世界是以防止錯誤為根基的；以正規(guī)化（normalization）為工具消除重復(fù)和防止更新異常。
The problem of XML redundancy detection with semantics is very meaningful to prevent update anomalies and the key problem of XML normalization theory.
XML保持語義下的冗余檢測問題對于防止XML文檔的更新異常和減少XML冗余信息的存儲具有很大意義，是XML規(guī)范化理論的關(guān)鍵問題之一。