bitmap indexing

См. также в других словарях:

• Bitmap index — A bitmap index is a special kind of database index.Bitmap indexes have traditionally been considered to work well for data such as gender, which has a small number of distinct values, e.g., male and female, but many occurrences of those values.… …   Wikipedia

• Index (database) — A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of slower writes and increased storage space. Indexes can be created using one or more columns of a database table,… …   Wikipedia

• Comparison of relational database management systems — Programming language comparisons General comparison Basic syntax Basic instructions Arrays Associative arrays String operations …   Wikipedia

• NTFS — Developer Microsoft Full name New Technology File System[1] Introduced July 1993 (Windows NT 3.1) Partition identifier 0x07 (MBR) EBD0A0A2 B9E5 4433 87C0 68B6 …   Wikipedia

• PostgreSQL — Developer(s) PostgreSQL Global Development Group Stable release 9.1.1[1] / 9.0.5 …   Wikipedia

• Column-oriented DBMS — A column oriented DBMS is a database management system (DBMS) that stores its content by column rather than by row. This has advantages for data warehouses and library catalogues where aggregates are computed over large numbers of similar data… …   Wikipedia

• Spaltenorientierte Datenbank — Eine Spaltenorientierte Datenbank ist ein Datenbankmanagementsystem, das seine Inhalte spaltenweise statt zeilenweise abspeichert. Das hat für Anwendungen wie ein Data Warehouse, wo Aggregate über große Zahlen ähnlicher Elemente gebildet werden,… …   Deutsch Wikipedia

• Scalable Vector Graphics — Infobox file format name = Scalable Vector Graphics icon = caption = extension = .svg, .svgz mime = image/svg+xml [ [http://www.w3.org/TR/SVGMobile12/mimereg.html M Media Type registration for image/svg+xml] ] type code = uniform type = magic =… …   Wikipedia

• Image scanner — Desktop scanner, with the lid raised. An object has been laid on the glass, ready for scanning …   Wikipedia

• Technical features new to Windows Vista — This article is part of a series on Windows Vista New features Overview Technical and core system Security and safety Networking technologies I/O technologies Management and administration Removed features …   Wikipedia

• Ext3 — infobox filesystem name = ext3 full name = Third extended file system developer = Stephen Tweedie introduction os = Linux 2.4.15 introduction date = November 2001 partition id = 0x83 (MBR) EBD0A0A2 B9E5 4433 87C0 68B6B72699C7 (GPT) directory… …   Wikipedia