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Informix News
9 Apr 12 - Mastering Data Management - Upping the Informix Ante: Advanced Data Tools... Read
22 Mar 12 - developerWorks - Optimizing Informix database access... Read
14 Mar 12 - BernieSpang.com - International Informix User Group set to meet in San Diego... Read
1 Mar 12 - IBM Data Management - IIUG Heads West for 2012 - Get ready for sun and sand in San Diego... Read
1 Mar 12 - IBM Data Management - Running Informix on Solid-State Drives.Speed Up Database Access... Read
26 Feb 12 - BernieSpan.com - Better results, lower cost for a broad set of new IBM clients and partners... Read
24 Feb 12 - developerWorks - Informix Warehouse Accelerator: Continuous Acceleration during Data Refresh... Read
6 Feb 12 - PRLOG - Informix port delivers unlimited database scalability for popular SaaS application ... Read
2 Feb 12 - developerWorks - Loading data with the IBM Informix TimeSeries Plug-in for Data Studio... Read
1 Feb 12 - developerWorks - 100 Tech Tips, #47: Log-in to Fix Central... Read
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


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IIUG Espaņol

SET EXPlAIN ON

Posted By: Juan Pablo
Date: Wednesday, 19 October 2005, at 3:25 p.m.

Hola:
Alguna persona me puede ayudar para poder entender mejor la
herramienta SET EXPLAIN ON
Quisiera saber que es lo que me dice cuando lo ejecuto.
Les estoy copiando una salida ejemplo... espero me puedan ayudar con
este ejemplo.

saludos y muchas gracias

QUERY:
------
SELECT det_GeneraLote0.cod_PautaCanal, det_GeneraLote0.cod_GeneraLote,
pro_PautaProyect0.fch_EdicionEnvio, pro_PautaProyect0.cod_Producto,
mprdprm0.dprdprm
FROM det_GeneraLote0, pro_PautaCanal0, pro_PautaProyect0,
mprdprm0
WHERE pro_PautaCanal0.cod_PautaCanal = det_GeneraLote0.cod_PautaCanal
AND pro_PautaProyect0.cod_PautaProyect = pro_PautaCanal0.cod_PautaProyect
AND pro_PautaProyect0.cod_Producto = mprdprm0.cprdprm

Estimated Cost: 40450
Estimated # of Rows Returned: 91039

1) informix.pro_pautaproyect0: SEQUENTIAL SCAN

2) informix.mprdprm0: INDEX PATH

(1) Index Keys: cprdprm
Lower Index Filter: informix.mprdprm0.cprdprm =
informix.pro_pautaproyect0.cod_producto
NESTED LOOP JOIN

3) informix.pro_pautacanal0: INDEX PATH

(1) Index Keys: cod_pautaproyect
Lower Index Filter: informix.pro_pautacanal0.cod_pautaproyect =
informix.pro_pautaproyect0.cod_pautaproyect
NESTED LOOP JOIN

4) informix.det_generalote0: INDEX PATH

(1) Index Keys: cod_pautacanal
Lower Index Filter: informix.det_generalote0.cod_pautacanal =
informix.pro_pautacanal0.cod_pautacanal
NESTED LOOP JOIN

Messages In This Thread

  • SET EXPlAIN ON
    Juan Pablo -- Wednesday, 19 October 2005, at 3:25 p.m.

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