Invention Grant
US08626746B2 Tracking modifications to values of various fields in a database serve 有权
跟踪对数据库服务器中各个字段值的修改

Tracking modifications to values of various fields in a database serve
Abstract:
Storing historical/previous values of a field of a relational database in the same table. The previous values can be conveniently used to revert back to any of such previously stored values. Thus, for each update/modify operation, the present value is stored as a previous value. In one embodiment, the previous values are stored in a VARRAY associated with each field. The indexed entries of the VARRAY store the present as well as previous values of the field.
Information query
Patent Agency Ranking
0/0