UpdateAnomalien
UpdateAnomalien, commonly referred to as update anomalies, describe inconsistencies that can occur in a database when data is redundantly stored and modification operations are performed on tables that are not normalized properly. They arise during insert, update, or delete operations and can lead to inconsistent data across rows or related records.
There are three classic forms: insertion anomalies, update anomalies, and deletion anomalies. An insertion anomaly occurs
A common illustration involves a single table that stores both product information and supplier details. If
Normalization is the primary approach to mitigate update anomalies. By splitting data into related tables and
Related concepts include functional dependency, database normalization, foreign keys, and ACID transactions. UpdateAnomalien are a key