1993-01-01, English, Article, Journal or magazine article, Poster, chart, other edition: Opening IMS to UNIX: a real-time solution. (how to provide interactive access to IMS data from UNIX platforms) (Tutorial) Koch, Carl R.

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Physical Description
  • table
  • chart
  • program
  • Tutorial
  • Magazine/​Journal article
Published
  • United Business Media LLC, 1993 Jan
Language
  • English

Edition details

Title
  • Opening IMS to UNIX: a real-time solution. (how to provide interactive access to IMS data from UNIX platforms) (Tutorial)
Also Titled
  • Opening IMS to UNIX: a real-time solution.
Appears In
  • Database Programming &​ Design, v6, no.n1, 1993 Jan, p51(6) (ISSN: 0895-4518)
Author
  • Koch, Carl R.
Published
  • United Business Media LLC, 1993 Jan
Physical Description
  • table
  • chart
  • program
  • Tutorial
  • Magazine/​Journal article
Subjects
Target Audience
  • Trade
Summary
  • How AT&​T's Denver Works implemented a system providing interactive access to IMS data from UNIX platforms was described in a previous article; here the ways the organization solved the problems of deadlock and concurrency are examined. A 'LOCK TABLE SITEMS IN EXCLUSIVE MODE' statement was put as the first SQL statement to solve deadlock in DRPVI000, but this damages concurrency. A design limitation was put on all data-specific extractor programs, which inserted extracted IMS data into only one DB2 output table. DRPVI000 had to be redesigned into two separate, distinct programs: DRPVI00A for data extraction for the CITEMS table, and DRPVI00B for data extraction for the SITEMS table. Neither program accesses both tables, so deadlock between CITEMS and SITEMS is not possible. DRIMUDB2 was modified to handle 'transaction macros' to overcome the performance reduction caused by running two separate programs.
Notes
  • table
  • chart
  • program
Language
  • English
Database
  • Gale General OneFile
Identifier
  • 13068497

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Charles Sturt University. CSU Library - Electronic Resources (shared). Open to the public 002053632; Full Text Available; Factiva - Available from 1994 until 1998 Periodical; Journal, magazine, other English
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Charles Sturt University. CSU Library - Electronic Resources (shared). Open to the public 002053632; Full Text Available; Factiva - Available from 1994 until 1998 Periodical; Journal, magazine, other English
Charles Sturt University. Wagga Wagga Campus Library. Open to the public 000399669; P005.74 D7; v.3(1990)-v.11:no.10(1998) Periodical; Journal, magazine, other English
University of Newcastle. University of Newcastle Library. Open to the public COMPUTER SELECT Periodical; Journal, magazine, other English
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Monash University. Monash University Library. Open to the public 9910108701751; 005.74 DAT; v. 9, no. 2 (Feb. 1996) to v. 11, no. 10 (Oct. 1998) ; lacks v. 10, no. 5 (May 1997); OS; YOS-SER Periodical; Journal, magazine, other English
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