International Informix Users Group

	Informix News

13 Jan 12 - MC Press online - Informix Dynamic Server Entices New Users with Free Production Edition ... Read 11 Jan 12 - Computerworld - Ecologic Analytics and Landis+Gyr -- Suitors Decide to Tie the Knot... Read 9 Jan 12 - planetIDS.com - DNS impact on Informix / Impacto do DNS no Informix... Read 8 Sep 11 - TMCnet.com - IBM Offers Database Solution to Enable Smart Meter Data Capture... Read 1 Aug 11 - IBM Data Management Magazine - IIUG user view: Happy 10th anniversary to IBM and Informix... Read 8 Jul 11 - Database Trends and Applications - Managing Time Series Data with Informix... Read 31 May 11 - Smart Grid - The meter data management pitfall utilities are overlooking... Read 27 May 11 - IBM Data Management Magazine - IIUG user view: Big data, big time ( Series data, warehouse acceleration, and 4GLs )... Read 16 May 11 - Business Wire - HiT Software Announces DBMoto for Enterprise Integration, Adds Informix. Log-based Change Data Capture... Read 21 Mar 11 - Yahoo! Finance - IBM and Cable&Wireless Worldwide Announce UK Smart Energy Cloud... Read 14 Mar 11 - MarketWatch - Fuzzy Logix and IBM Unveil In-Database Analytics for IBM Informix... Read 11 Mar 11 - InvestorPlace - It's Time to Give IBM Props: How many tech stocks are up 53% since the dot-com boom?... Read 9 Mar 11 - DBTA - Database Administration and the Goal of Diminishing Downtime... Read 2 Feb 11 - DBTAs - Informix 11.7 Flexible Grid Provides a Different Way of Looking at Database Servers... Read 27 Jan 11 - exactsolutions - Exact to Add Informix Support to Database Replay, SQL Monitoring Solutions... Read 25 Jan 11 - PR Newswire - Bank of China in the UK Works With IBM to Become a Smarter, Greener Bank... Read 12 Oct 10 - Database Trends and Applications - Informix 11.7: The Beginning of the Next Decade of IBM Informix... Read 20 Sep 10 - planetIDS.com - ITG analyst paper: Cost/Benefit case for IBM Informix as compared to Microsoft SQL Server... Read 20 Jul 10 - IBM Announcements - IBM Informix Choice Edition V11.50 helps deploy low-cost scalable and reliable solutions for Apple Macintosh and Microsoft Windows... Read 20 Jul 10 - IBM Announcements - Software withdrawal: Elite Support for Informix Ultimate-C Edition... Read 24 May 10 - eWeek Europe - IBM Supplies Database Tech For EU Smart Grid... Read 23 May 10 - SiliconIndia - IBM's smart metering system allows wise use of energy... Read 21 May 10 - CNET - IBM to help people monitor energy use... Read 20 May 10 - ebiz - IBM Teams With Hildebrand To Bring Smart Metering To Homes Across Britain... Read 19 May 10 - The New Blog Times - Misurare il consumo energetico: DEHEMS è pronto... Read 19 May 10 - ZDNet - IBM software in your home? Pact enables five-city smart meter pilot in Europe... Read 17 March 10 - ZDNet (blog) David Morgenstern - TCO: New research finds Macs in the enterprise easier, cheaper to manage than... Read 17 March 2010 - Virtualization Review - ...key components of Big Blue's platform to the commercial cloud such as its WebSphere suite of application ser vers and its DB2 and Informix databases... Read 10 February 2010 - The Wall Street Journal - International Business Machines is expanding an initiative to win over students and professors on its products. How do they lure the college crowd?... Read Previous news items

End of Support Dates

IDS 11.10 - 30 Sep 2012 Subscribe to notifications

Home Member Area About IIUG Help

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

Classics Forum

Re: RE: SERIAL to INTEGER key joins vs. CHAR to CH

Posted By: FRANK ROTOLO
Date: Tuesday, 9 March 2010, at 6:18 p.m.

In Response To: RE: SERIAL to INTEGER key joins vs. CHAR to CHAR. (Ian Michael Gumby)

"Art, you're trying to fix a brain dead solution.
Hint: The patient is dead from the get go..."
^
HERE WE GO AGAIN WITH THE INSULTS!
----------------------------------
It's a Pawnshop Management System with:
1350 active customers rows (grows about 10/month), 3800 inactive customers.
250 active loan rows (avg per month), 5700 finalized loan rows (no further updating, but user wants to keep in loan table for reference), so each active customer has about 2 active loans average and several redeemed. forfeited loans.
After experimenting with cust_id vs. cust_name joins for the loans table, cust_name scheme wins, since with loans.cust_id, loan rows have no cust_name,
even though customers has a CREATE UNIQUE CLUSTERED INDEX ON customers(cust_name) and loans are grouped together with CREATE CLUSTERED INDEX ON loans(cust_id). The loans are not grouped together by name in ascending CHAR order like the customer table is and C-ISAM has to jump all over the datafile to build the temporary file's current-list.
The unload/re-load, drop/create tables, creation of all indexes and update statistics takes only 14 seconds! and all newly recreated indexes with update staistics really seems to make the system healthy (never have had to run a dbcheck to repair anything).
So, there you have it! ;O)

Messages In This Thread

SERIAL to INTEGER key joins vs. CHAR to CHAR.
FRANK ROTOLO -- Monday, 8 March 2010, at 12:24 a.m.
- Re: SERIAL to INTEGER key joins vs. CHAR to CHAR.
  John Miller iii -- Monday, 8 March 2010, at 1:55 a.m.
- Re: SERIAL to INTEGER key joins vs. CHAR to CHAR.
  Art Kagel -- Monday, 8 March 2010, at 6:55 a.m.
  - Re: SERIAL to INTEGER key joins vs. CHAR to CHAR.
    FRANK ROTOLO -- Monday, 8 March 2010, at 2:57 p.m.
    - Re: SERIAL to INTEGER key joins vs. CHAR to CHAR.
      Art Kagel -- Monday, 8 March 2010, at 6:51 p.m.
      - Re: SERIAL to INTEGER key joins vs. CHAR to CHAR.
        FRANK ROTOLO -- Monday, 8 March 2010, at 8:45 p.m.
  - Re: SERIAL to INTEGER key joins vs. CHAR to CHAR.
    FRANK ROTOLO -- Monday, 8 March 2010, at 3:35 p.m.
    - Re: SERIAL to INTEGER key joins vs. CHAR to CHAR.
      Jonathan Leffler -- Wednesday, 10 March 2010, at 2:04 a.m.
- Re: SERIAL to INTEGER key joins vs. CHAR to CHAR.
  Pankrich Khanthasa-ard -- Monday, 8 March 2010, at 11:01 a.m.
  - Re: SERIAL to INTEGER key joins vs. CHAR to CHAR.
    Art Kagel -- Monday, 8 March 2010, at 11:46 a.m.
    - Re: SERIAL to INTEGER key joins vs. CHAR to CHAR.
      FRANK ROTOLO -- Monday, 8 March 2010, at 3:08 p.m.
      - Re: SERIAL to INTEGER key joins vs. CHAR to CHAR.
        Art Kagel -- Monday, 8 March 2010, at 7:25 p.m.
        
        Re: SERIAL to INTEGER key joins vs. CHAR to CHAR.
        FRANK ROTOLO -- Monday, 8 March 2010, at 9:20 p.m.
        
        RE: SERIAL to INTEGER key joins vs. CHAR to CHAR.
        Ian Michael Gumby -- Tuesday, 9 March 2010, at 12:31 p.m.
        
        Re: RE: SERIAL to INTEGER key joins vs. CHAR to CH
        FRANK ROTOLO -- Tuesday, 9 March 2010, at 6:18 p.m.
  - RE: SERIAL to INTEGER key joins vs. CHAR to CHAR.
    Zev Berezin -- Tuesday, 9 March 2010, at 3:18 p.m.

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

Classics Forum is maintained by Administrator with WebBBS 5.12.