acm.org2 天
R2T: Instance-Optimal Truncation for Differentially Private Query Evaluation with Foreign Keys
Answering SPJA queries under differential privacy (DP), including graph-pattern counting under node-DP as an important ...
Princeton University10 年
E-commerce Database Design - Part II
SQL Server will not let you do this. In SQL Server you must have a field that uniquely identifies each row. In SQL 7 you need an OrderDetailID as the Primary Key to uniquely identify each row in the ...