Sophisticated analytical tools, techniques and increase in processing power have resulted in development of new areas of database management as data warehousing and data mining. On line analytical processing (OLAP), data warehousing and data mining provide this functionality. This research paper focuses...
Bitmap indexes are task-specific indexes best suited for providing fast data retrieval for OLAP workloads and are generally very fast for read-mostly scenarios. However, bitmap indexes don’t perform well in heavy DML or OLTP workloads.
CUBIT's update-friendly nature widens the applicability of bitmap indexing. Experimenting with OLAP workloads with standard, batched updates shows that CUBIT overcomes the maintenance downtime and outperforms DuckDB by 1.2x - 2.7x on TPC-H. For HTAP workloads with real-time updates, CUBIT ...
Bitmap indexing is a common technique for indexing high-dimensional data in data warehouses and scientific applications. Though efficient for low-cardinali... D Rotem,K Stockinger,K Wu - 《Lawrence Berkeley National Laboratory》 被引量: 13发表: 2004年 Resource partitioning information for enhanced ...
we present a general framework to study the design space of bitmap indexes for selection queries and examine the disk-space and time characteristics that the various alternative index choices offer. In particular, we draw a parallel between bitmap indexing and num- ber representation in different ...
Database systems tend to achieve only low IPC (instructions-per-cycle) efficiency on modern CPUs in compute-intensive application areas like decision support, OLAP and multimedia retrieval. This paper starts with an in-depth investigatio... PA Boncz,M Zukowski,NJ Nes - 《Cidr》 被引量: 750...
bitmap indices. ICDE’14, IEEE, 2014; 484–495.•Culpepper JS, Moffat A. Efficient set intersection for inverted indexing. ACM Transactions on Information Systems Dec 2010; 29(1):1:1–1:25, doi:10.1145/1877766.1877767.•Kaser O, Lemire D. Attribute value reordering for efficient ...
An Efficient Indexing Technique for Computing High Dimensional Data Cubes. The computation of a data cube is one of the most essential but challenging issues in data warehousing and OLAP. Partition based algorithm is one of the efficient methods to compute data cubes on high dimensionality, low ca...
Database IndexingBitmap IndexBitmap compressionByte-based Bitmap CodeWord-Aligned HybridBitmap indexes are commonly used in data warehousing applications such as on-line analytic processing (OLAP). Storing the bitmaps in compressed form has been shown to be effective not only for low cardinality ...
Out of this first three are traditional techniques which are suitable for Online Transaction Processing system (OLTP) whereas Bitmap indexing is suitable for Online Analytical processing (OLAP) system. The performance of Data warehouse is depends upon the time required to execute query on it. ...