2229 search results - page 283 / 446 » The Case for Grounding Databases |
156
Voted
VLDB
1998
ACM
15 years 9 months ago
1998
ACM
Many applications compute aggregate functions over an attribute (or set of attributes) to find aggregate values above some specified threshold. We call such queries iceberg querie...
159
Voted
VLDB
1998
ACM
15 years 9 months ago
1998
ACM
Approximate predicates can be used to reduce the number of comparisons made by expensive, complex predicates. For example, to check if a point is within a region (expensive predic...
119
Voted
SIGMOD
1996
ACM
15 years 9 months ago
1996
ACM
Repositories of multimedia objects having multiple types of attributes e.g., image, text are becoming increasingly common. A selection on these attributes will typically produce n...
167
Voted
PDIS
1993
IEEE
15 years 9 months ago
1993
IEEE
The research communityhas considered hash-based parallel joinalgorithmsthe algorithmsof choice for almosta decade. However, almostnone ofthe commercialparallel database systems us...
161
Voted
VLDB
1992
ACM
15 years 9 months ago
1992
ACM
Multiversion two-phase locking (MV2PL) has been incorporated in some commercial transaction processing systems to support the serializable execution of queries. A drawback to this...