teradatatuning.blogspot.com

Teradata tuning

This is a personal blog of Akos Levai, a certified Teradata Master who shares here his tips about Teradata tuning and optimization. Feedbacks, questions and propagation are welcome. Akos works as Development Director of PRISE, http:/ prisetools.com , you can find Akos on LinkedIN: hu.linkedin.com/in/alevai/. Thursday, April 17, 2014. Sponsored by PRISE Ltd. How to use query banding in Teradata? In that mess of queries. How can I find a specific query? What did that query run by? Who defines the queryband?

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This is a personal blog of Akos Levai, a certified Teradata Master who shares here his tips about Teradata tuning and optimization. Feedbacks, questions and propagation are welcome. Akos works as Development Director of PRISE, http:/ prisetools.com , you can find Akos on LinkedIN: hu.linkedin.com/in/alevai/. Thursday, April 17, 2014. Sponsored by PRISE Ltd. How to use query banding in Teradata? In that mess of queries. How can I find a specific query? What did that query run by? Who defines the queryband?

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Teradata tuning | teradatatuning.blogspot.com Reviews

https://teradatatuning.blogspot.com

This is a personal blog of Akos Levai, a certified Teradata Master who shares here his tips about Teradata tuning and optimization. Feedbacks, questions and propagation are welcome. Akos works as Development Director of PRISE, http:/ prisetools.com , you can find Akos on LinkedIN: hu.linkedin.com/in/alevai/. Thursday, April 17, 2014. Sponsored by PRISE Ltd. How to use query banding in Teradata? In that mess of queries. How can I find a specific query? What did that query run by? Who defines the queryband?

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teradatatuning.blogspot.com

1

PRISE Teradata Database Optimization: September 2013

http://www.teradatatuning.blogspot.com/2013_09_01_archive.html

PRISE Teradata Database Optimization. Wednesday, September 25, 2013. Boost slow (LEFT/RIGHT) OUTER JOINs. Sponsored by PRISE Ltd. How to optimize slow OUTER JOINs. We have a (LEFT or RIGHT) OUTER JOIN, and it runs a long time while causing skewed CPU / Spool usage. In practice most of the time during the query execution only 1 AMP will work, while others have nothing to do, causing poor parallel efficiency. In the DBQL you should find skewed, high CPU usage queries (. Select Table1.x,Table2.y. If Table2 ...

2

PRISE Teradata Database Optimization: April 2014

http://www.teradatatuning.blogspot.com/2014_04_01_archive.html

PRISE Teradata Database Optimization. Thursday, April 17, 2014. Sponsored by PRISE Ltd. How to use querybanding in Teradata? Teradata is a diligent RDBMS that runs sometimes millions of SQLs a day. You will see them in the DBQL (DataBase Query Logging area) - if it is switched on - but it's a hard job to know around. In that mess of queries. How can I find a specific query? What did that query run by? If I want to analyze or modify something I need to find the source of the execution as exactly as can be.

3

PRISE Teradata Database Optimization: November 2013

http://www.teradatatuning.blogspot.com/2013_11_01_archive.html

PRISE Teradata Database Optimization. Friday, November 29, 2013. Sponsored by PRISE Ltd. How to "re-parallelize" skewed joins. Assume that we have 1M customers, 4M transactions and our top customer produce the 2.5% of all transactions. Others produce the remaining 97.5% of transactions approx. evenly. Scroll down to the bottom of the post for sample table and data generator SQL. Our task is to join a "Customer" and a "Transaction" tables on Customer id. SELECT Customer name, count(*). GROUP BY 1;. RowHas...

4

PRISE Teradata Database Optimization: February 2014

http://www.teradatatuning.blogspot.com/2014_02_01_archive.html

PRISE Teradata Database Optimization. Friday, February 28, 2014. Sponsored by PRISE Ltd. How to use Join Index (JI) in Teradata. Join index is most like a "materialized view", say it is a stored result of an SQL SELECT ,. Like a table: you can define the primary index (PI) of the stored result. What are the main differences between a JI and a Secondary Index. Different internal structure and purposes. Appears as separate object (not a sub-table) in the DBC tables/views. Used in the JI definition. This is...

5

PRISE Teradata Database Optimization: March 2014

http://www.teradatatuning.blogspot.com/2014_03_01_archive.html

PRISE Teradata Database Optimization. Tuesday, March 18, 2014. Sponsored by PRISE Ltd. How to store date and time info effectively. Data Warehouse databases usually contain significant amount of date/time information. Physical modeling technique can seriously influence their storage space and usability. Date/time information can be stored in different ways/data types, each of them will have its own specialities. Timestamp(n) , when n means the fractional digits of seconds. Separate storage: Date and Time.

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prisetools.com

PRISE Teradata Database Optimization

https://www.prisetools.com/products/compress-wizard

Compress tables without performance tradeoff. Easy, comprehensive, accurate. SQL based optimization process. The product was specifically developed to reduce Teradata disk consumption, utilizing internal Teradata Multi-Value Compression (MVC) feature. PCW analyzes tables, produces the optimal MVC settings, and computes the possible space gains w/o modifying the tables. Process based program structure. Analyzing available in manual and also in batch mode. Export results to Excel document easily. 10x ROI o...

prisetools.com

PRISE Teradata Database Optimization

https://www.prisetools.com/products/tuning-assistant

Fastest way to optimize Teradata queries. Makes you a Teradata tuning expert. Easy - Quick - Visual. PTA is the most effective tool for optimizing Teradata SQL queries. It helps to identify and visualize resource-critical and slow queries. Based on DBQL data, needs no additional arrangements. Advanced query search function. SQL beautifier&highlighter and alias map for easy script reading. Table info center (Size, Skew, Statistics). Detailed step info with "top highlighting". View our other product:.

prisetools.com

PRISE Teradata Database Optimization

https://www.prisetools.com/products

Compress tables without performance tradeoff. Easy, comprehensive, accurate. SQL based optimization process. The product was specifically developed to reduce Teradata disk consumption, utilizing internal Teradata Multi-Value Compression (MVC) feature. PCW analyzes tables, produces the optimal MVC settings, and computes the possible space gains w/o modifying the tables. Process based program structure. Analyzing available in manual and also in batch mode. Export results to Excel document easily. 10x ROI o...

prisetools.com

PRISE Teradata Database Optimization

https://www.prisetools.com/reduce-cost

How optimization reduces your costs? Teradata hardware investments can be postponed or cancelled Read more. Does your Teradata system run at full capacity, and it is told that you must invest to new hardware? Applying PRISE products the resource requirements of load jobs and queries can be significantly reduced, therefore the current capacity can be enough to serve the actual and event future demands. Optimization costs you peanuts compared to hardware Read more. No downtime, no waiting Read more. Terada...

prisetools.com

PRISE Teradata Database Optimization

https://www.prisetools.com/free-trial/compress-wizard

Download PRISE Compress Wizard. Please complete this form to download your free evaluation copy of. We use your information for internal purposes only. Accept End-User Licence Agreement. Numbers on the image.

prisetools.com

PRISE Teradata Database Optimization

https://www.prisetools.com/free-trial/tuning-assistant

Download PRISE Tuning Assistant. Please complete this form to download your free evaluation copy of. We use your information for internal purposes only. Accept End-User Licence Agreement. Numbers on the image.

prisetools.com

PRISE Teradata Database Optimization

https://www.prisetools.com/products/statman

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PRISE References

https://www.prisetools.com/references

TeliaSonera AB is the dominant telephone company and mobile network operator in Sweden and Finland. The company has operations in other countries in Northern, Eastern Europe, Central Asia, South Asia and Spain, with a total of 182.1 million mobile customers (Q1, 2013). It is headquartered in Stockholm and its stocks are traded on the Stockholm Stock Exchange and on the Helsinki Stock Exchange." - WikiPedia. PRISE Tuning Assistant, PRISE Compress Wizard. Detailed reading (PDF file). Mobiltel utilized PCW ...

prisetools.com

PRISE Teradata Database Optimization

https://www.prisetools.com/boost-performance

How can you boost Teradata performance? Typically TOP 50 queries will consume 25% of all resources. Cut high CPU, I/O and Spool consumes. Eliminate skewness for utilize maximum parallel efficiency. Find and solve these issues with PRISE Tuning Assistant. Reduce I/O load by compression. Significant I/O reduction can be achieved by applying multi value compression w/o CPU tradeoffs. Use PRISE Compress Wizard. To check your system and reduce storage space and I/O by around 30%.

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TeraData Online Training in UK, USA, FRANCE

TeraData Online Training in UK, USA, FRANCE. Sunday, 21 August 2016. Best Teradata online training in UK, USA, FRANCE. IT HUB online training is one of the famous online training centers. In which we are providing Teradata online training. Subscribe to: Posts (Atom). View my complete profile. Best Teradata online training in UK, USA, FRANCE. Simple template. Powered by Blogger.

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Best Teradata Online Training By Manohar | Teradata Training 9

Contact us now: 91 8499999111. Teradata is a linearly scalable and unconditinally parallel RDBMS. It can manage Zetta bytes of data and generate reports in seconds. Organisations are looking forward to implement new Datawarehouse applications and are migrating existing applications to Teradata. So huge Teradata Developer and DBA job opportunities across the world. Those looking for IT jobs with proper academic qualification. Go through the sample videos and join live demos to check your suitability.

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teradatatuning.blogspot.com

Teradata tuning

This is a personal blog of Akos Levai, a certified Teradata Master who shares here his tips about Teradata tuning and optimization. Feedbacks, questions and propagation are welcome. Akos works as Development Director of PRISE, http:/ prisetools.com , you can find Akos on LinkedIN: hu.linkedin.com/in/alevai/. Thursday, April 17, 2014. Sponsored by PRISE Ltd. How to use query banding in Teradata? In that mess of queries. How can I find a specific query? What did that query run by? Who defines the queryband?

teradatauniverse.blogspot.com

Teradata Universe

Teradata Universe email enquiries. 61 2 9439 2698. Wednesday, March 29, 2006. On the first morning of the Teradata Universe 2006 conference, I facilitated a panel on the subject of ‘Information Everywhere’. Here is a transcription of the panel. 15 March, 2006 - Sydney. TERADATA UNIVERSE MEDIA PANEL TRANSCRIPTION. Professor Craig Mudge (CM): Professor of Innovation at Macquarie University and Director of the Macquarie Institute for Innovation. Graeme Wood (GW) Co-founder of wotif.com. SB It needs to be to...

teradatauniversitynetwork.com

Teradata University Network

TUN in the News. 2017 TUN Data and Analytics Challenges. Meet Our 2016 WINNERS! Learn Teradata Technology and Get Certified. The world’s largest corporations have made Teradata their choice for enterprise data warehousing and enterprise analytics. Click Here to Learn More. Visual Analytics is Here! Bring your data to life through visualization. Stay Connected with TUN. Teradata University Network provides insights into opportunities after graduation. The resources you need. Clearly the challenges of prep...

teradatawiki.net

Teradata Wiki

A to Z Performance Tuning. The purpose of a Columnar(NoPI) table is to spread the rows evenly across the AMPs. This is why a NoPI table is often used as a staging table. Columnar Tables must be a NoPI Table so No Primary Index (NoPI). The NoPI brings even distribution to the table. Columnar Tables allow Columns to be Partitioned. An AMP still holds the entire row, but partitions vertically. Columns are placed inside their own individual Container. Each container looks like a small table for I/O purposes.

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