Horizontal fragmentation

Distributed Database Management Systems: Lecture 21. The main topics covered in this chapter include: types of fragmentation with horizontal fragmentation, vertical fragmentation; storing a separate copy of database at each of two or three or more sites;...

31p haoasakura 30-05-2022 19 5   Download

Distributed Database Management Systems: Lecture 20. The main topics covered in this chapter include: continue with VF to hybrid fragmentation; allocation problem; replication; VF correctness; primary and derived horizontal fragmentation;...

32p haoasakura 30-05-2022 18 4   Download

Distributed Database Management Systems: Lecture 24. The main topics covered in this chapter include: fragmentation; design phase and have got the predicates to be used as basis for PHF; name our fragments/local tables as custQTA, custPESH;...

35p haoasakura 30-05-2022 28 3   Download

Distributed Database Management Systems: Lecture 25. The main topics covered in this chapter include: derived horizontal fragmentation; fragmenting/partitioning a table based on the constraints defined on another table; linked with each other through Owner-Member relation;...

61p haoasakura 30-05-2022 26 3   Download

Distributed Database Management Systems: Lecture 13. The main topics covered in this chapter include: interests of the local and head offices mar result following vertical partitions of this table: EMP1(eId, eName, eDept); EMP2(eId, eQual, eSal); degree of fragmentation; correctness rules for fragmentation;...

18p haoasakura 30-05-2022 15 5   Download

Distributed Database Management Systems: Lecture 15. The main topics covered in this chapter include: PHF- Minimality of Pr; PHF-COM-MIN algorithm; primary horizontal partitioning algorithm; derived horizontal fragmentation (DHF);...

36p haoasakura 30-05-2022 15 3   Download

Lecture Principles of distributed database systems - Chapter 15: Distributed object DBMS. In this chapter students will be able to: Distributed object DBMS, object models, object distribution, fundamental concepts, object distribution, fragmentation alternatives, horizontal fragmentation,...

20p nanhankhuoctai1 06-05-2020 28 2   Download

Lecture Principles of distributed database systems - Chapter 3: Distributed database design. In this chapter students will be able to: Design problem, dimensions of the problem, distribution design, top-down design, distribution design issues, fragmentation alternatives – horizontal, degree of fragmentation,...

65p nanhankhuoctai1 06-05-2020 19 1   Download

Workflow management systems help to execute, monitor and manage work process flow and execution. These systems, as they are executing, keep a record of who does what and when (e.g. log of events). The activity of using computer software to examine these records, and deriving various structural data results is called workflow mining.

26p caygaocaolon1 12-11-2019 22 1   Download