191 search results - page 4 / 39 » Extending the Relational Algebra to Support Transaction Time |
IDEAS
2005
IEEE
15 years 3 months ago
2005
IEEE
Our goal is to support transaction-time functionality that enables the coexistence of ordinary, non-temporal tables with transaction-time tables. In such a system, each transactio...
VLDB
1992
ACM
15 years 1 months ago
1992
ACM
This paper considers the problem of adding list as a type constructor to an object-oriented data model. In particular, we are concerned with how lists in a database can be constru...
160
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SIGMOD
2007
ACM
15 years 9 months ago
2007
ACM
This paper extends relational processing and optimization to the FISQL/FIRA languages for dynamic schema queries over multidatabases. Dynamic schema queries involve the creation a...
103
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FOCS
1991
IEEE
15 years 1 months ago
1991
IEEE
For sums of radicals Pk i=1 i di p i, where i; i are elements of some real algebraic number eld Q( ); di p i 2 R; we present a deterministic polynomial time algorithm to decide wh...
ICDE
2007
IEEE
15 years 3 months ago
2007
IEEE
This work is concerned with user perceived privacy and how clients (which we call data subjects here) can be empowered to control their own data consistently with their own intere...