Database System - 4th theory class : Formal Relational Query Languages (2) 20/03/23
[經過長時期的鹹魚之旅我決定翻下身系列] Relation algebra(8) : Division Notation : R ÷ S R = ( A1 , … , Am , B1 , … , Bn ) S = ( B1 , … , Bn ) S 含於 R R - S = ( A1 , … , Am ) Outer-Join An extension of the join operation
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相關文章
- 1. Database System - 3rd theory class : Formal Relational Query Languages 20/03/16
- 2. Formal language
- 3. The Evolution of Alibaba Cloud's Relational Database Services Architecture – PolarDB
- 4. Database | 淺談Query Optimization (2)
- 5. CMU Database Systems - Query Optimization
- 6. illuminate database query builder
- 7. CMU Database Systems - Concurrency Control Theory
- 8. Linear System Theory: zero-input response of LTI system
- 9. database system conception（二）
- 10. DATABASE SYSTEM CONCEPTS