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» Implementing a Tamper-Evident Database System
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SIGMOD
2000
ACM
141views Database» more  SIGMOD 2000»
14 years 2 months ago
Counting, Enumerating, and Sampling of Execution Plans in a Cost-Based Query Optimizer
Testing an SQL database system by running large sets of deterministic or stochastic SQL statements is common practice in commercial database development. However, code defects oft...
Florian Waas, César A. Galindo-Legaria
SIGMOD
1993
ACM
140views Database» more  SIGMOD 1993»
14 years 2 months ago
Second-Order Signature: A Tool for Specifying Data Models, Query Processing, and Optimization
Abstract: We propose a framework for the specification of extensible database systems. A particular goal is to implement a software component for parsing and rule-based optimizatio...
Ralf Hartmut Güting
SIGMOD
1997
ACM
180views Database» more  SIGMOD 1997»
14 years 2 months ago
Online Aggregation
Aggregation in traditional database systems is performed in batch mode: a query is submitted, the system processes a large volume of data over a long period of time, and, eventual...
Joseph M. Hellerstein, Peter J. Haas, Helen J. Wan...
WAIM
2010
Springer
13 years 8 months ago
V Locking Protocol for Materialized Aggregate Join Views on B-Tree Indices
Immediate materialized view maintenance with transactional consistency is highly desirable to support real-time decision making. Nevertheless, due to high deadlock rates, such main...
Gang Luo
CIKM
2009
Springer
13 years 8 months ago
A tag recommendation system for folksonomy
Social bookmarking tools become more and more popular nowadays and tagging is used to organize information and allow users to recall or search the resources. Users need to type th...
Ning Zhang, Yuan Zhang, Jie Tang