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cs.DB2024
A Decidable Case of Query Determinacy: Project-Select Views
Wen Zhang, Aurojit Panda, Mooly Sagiv +1
Query determinacy is decidable for project-select views and a project-select-join query with no self joins, as long as the selection predicates are in a first-order theory for whic…
cs.SE2024
Extracting Database Access-Control Policies From Web Applications
Wen Zhang, Dev Bali, Jamison Kerney +2
To safeguard sensitive user data, web developers typically rely on implicit access-control policies, which they implement using access checks and query filters. This ad hoc approac…