搜索
热搜: music
门户 Wiki

Wiki

sub category:  Wiki
Honeywell
Honeywell came into being through the invention of the damper flapper, a thermostat for coal furnaces, by Albert Butz, in 1885 and subsequent innovations in electric motors and process control by Minn ...
category:    2014-7-23 22:14
IBM Business System 12
Business System 12, or simply BS12, was one of the first fully relational database management systems, designed and implemented by IBM's Bureau Service subsidiary at the company's international develo ...
category:    2014-7-23 22:13
IBM Peterlee Relational Test Vehicle (PRTV)
PRTV (Peterlee Relational Test Vehicle) was the world's first relational database management system that could handle significant data volumes.It was a relational query system with powerful query faci ...
category:    2014-7-23 22:12
QUEL query languages
QUEL statements are always defined by tuple variables, which can be used to limit queries or return result sets. Consider this example, taken from one of the first original Ingres papers:Example 1.1. ...
category:    2014-7-23 22:11
IBM System R
IBM System R is a database system built as a research project at IBM's San Jose Research Laboratory beginning in 1974. System R was a seminal project: it was the first implementation of SQL, which has ...
category:    2014-7-23 22:09
Database objects
Regardless of ownership, each database is created with a set of tables and views owned by the user "$ingres". These are referred to as catalogs and are used to control many aspects of the databases in ...
category:    2014-7-23 22:06
Ingres (database)
In 1973 when the System R project was getting started at IBM, the research team released a series of papers describing the system they were building. Two scientists at Berkeley, Michael Stonebraker an ...
category:    2014-7-23 22:06
Michael Stonebraker
Stonebraker's career can be broadly divided into two phases; his time at Berkeley when he focused on relational systems, and the past decade at MIT where he has developed several new data management s ...
category:    2014-7-23 22:04
Communications of the ACM
Some notable articles are:The issue of what to call the then-fledgling field of computer science was raised by the editors of DATA-LINK in a letter to the editor of CACM, appearing in 1958, the first ...
category:    2014-7-23 22:03
Tuple relational calculus
Definition of the calculus Relational database Since the calculus is a query language for relational databases we first have to define a relational database. The basic relational building block is the ...
category:    2014-7-23 22:02
Linked list operations
When manipulating linked lists in-place, care must be taken to not use values that you have invalidated in previous assignments. This makes algorithms for inserting or deleting linked list nodes somew ...
category:    2014-7-23 21:59
Linked list
Linked lists were developed in 1955–1956 by Allen Newell, Cliff Shaw and Herbert A. Simon at RAND Corporation as the primary data structure for their Information Processing Language. IPL was used by ...
category:    2014-7-23 21:58
Hard disk drive interface
HDDs are accessed over one of a number of bus types, including as of 2011 parallel ATA (PATA, also called IDE or EIDE; described before the introduction of SATA as ATA), Serial ATA (SATA), SCSI, Seria ...
category:    2014-7-23 21:57
Hard disk drive
Main article: History of hard disk drivesHDDs were introduced in 1956 as data storage for an IBM real-time transaction processing computer and were developed for use with general purpose mainframe and ...
category:    2014-7-23 21:55
Parks, gardens, and other outdoor recreational sites
San Jose possesses about 15,950 acres of parkland in its city limits, including a part of the expansive Don Edwards San Francisco Bay National Wildlife Refuge. The city's oldest park is Alum Rock Park ...
category:    2014-7-23 21:53

related categories

About us|Jobs|Help|Disclaimer|Advertising services|Contact us|Sign in|Website map|Search|

GMT+8, 2024-11-17 04:59 , Processed in 2.660976 second(s), 7 queries .

57883.com service for you! X3.1

返回顶部