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» Auditing SQL Queries
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DEBU
2008
139views more  DEBU 2008»
14 years 9 months ago
Testing SQL Server's Query Optimizer: Challenges, Techniques and Experiences
Query optimization is an inherently complex problem, and validating the correctness and effectiveness of a query optimizer can be a task of comparable complexity. The overall proc...
Leo Giakoumakis, César A. Galindo-Legaria
EDBT
2009
ACM
160views Database» more  EDBT 2009»
15 years 2 months ago
Estimating aggregates in time-constrained approximate queries in Oracle
The concept of time-constrained SQL queries was introduced to address the problem of long-running SQL queries. A key approach adopted for supporting time-constrained SQL queries i...
Ying Hu, Seema Sundara, Jagannathan Srinivasan
ICDE
2007
IEEE
107views Database» more  ICDE 2007»
15 years 11 months ago
Robust Heuristics for Scalable Optimization of Complex SQL Queries
Gopal Chandra Das, Jayant R. Haritsa
LPAR
2010
Springer
14 years 7 months ago
Qex: Symbolic SQL Query Explorer
We describe a technique and a tool called Qex for generating input tables and parameter values for a given parameterized SQL query. The evaluation semantics of an SQL query is tra...
Margus Veanes, Nikolai Tillmann, Jonathan de Halle...
EDBT
2008
ACM
141views Database» more  EDBT 2008»
15 years 10 months ago
Generating Highly Customizable SQL Parsers
Database technology and the Structured Query Language (SQL) have grown enormously in recent years. Applications from different domains have different requirements for using databa...
Gunter Saake, Marko Rosenmüller, Martin Kuhle...