Easing Into Using the New AutoStats Feature - comment by carrie
Sandeep, There is another blog posting titled Statistics Threshold Functionality 101 that answers your questions. It provides this explanation: "System threshold: This is the default approach for...
View ArticleEasing Into Using the New AutoStats Feature - comment by carrie
Nazy, The two main factors that influence how long an Analyze job runs are 1.) the number of logged queries; and 2.) the average size of the logged XML files. So the size of the TDStats tables is...
View ArticleStatistics Threshold Functionality 101 - comment by Sandeepyadav
Hi Carrie, There are 980 Database exists in my system. If i enable usecount logging for each database then is there any impact ? DBQLRULES table will have 1000 rows. so Is it fine ? Is it good to make...
View ArticleStatistics Collection Recommendations – Teradata Database 14.10 - comment by...
Hi Carrie, You mentioned above"Collect full statistics on Partitioning columns of a row-partitioned table"..."6. For temporal tables, follow all collection recommendations made above. Currently,...
View ArticleStatistics Threshold Functionality 101 - comment by carrie
Sandeep, I have not heard of any issues with UseCount logging overhead being problematic. UseCount logging uses the same techniques as other DBQL collections. There is a UseCount DBQL cache that is...
View ArticleStatistics Collection Recommendations – Teradata Database 14.10 - comment by...
Socola, Starting in 14.10, statistics can be collected on BEGIN/END(valid_time/transaction_time) since we support expression statistics. However, note that we don’t allow collection on the PERIOD...
View ArticleNew opportunities for statistics collection in Teradata 14.0 - comment by...
Hello, I just heard from someone that in TD14.10 stats can be collected on only NEW Partition of a table. And they are not talking about collecting stats on column PARTITION. Can we collect stats on...
View ArticleNew opportunities for statistics collection in Teradata 14.0 - comment by carrie
Hi Nazy, Statistics are always collected on the entire table. There is no capability in 14.10 to just collect stats on a single partition. That capability may be added at some future time, but I...
View ArticleEasing Into Using the New AutoStats Feature - comment by Sandeepyadav
Hi Carrie, what is the difference in between when we automate stats for a database by clicking automate option in statistics tab and when we select the database through analyse job. In both the ways...
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Global Weights in SLES 11 Priority Scheduler - blog entry by carrie
Think about the priority part of workload management for a minute.The settings that the administrator makes when defining priorities for different workloads are on the surface--things like workload...
View ArticleControlling the Flow of Work in Teradata - comment by dibya_plus
Hello Carrie, Thanks for such a nice article. What is right balance between WorkOne and WorkNew? Is there any specific trend that we do expect? I have noticed that Work One is getting lot less AWT as...
View ArticleEasing Into Using the New AutoStats Feature - comment by carrie
Sandeep, Here are some details that describe the implications of using Automate in different ways: - The Automate operation registers an existing statistic defined in the data dictionary...
View ArticleControlling the Flow of Work in Teradata - comment by carrie
There is usually more activity with WorkNew than with WorkOne AWTs. Every request-step that executes requires a WorkNew AWT just to get started. And if there are two or three parallel steps, each...
View ArticleEntering and Exiting a TASM State - comment by Huzain
Hello All, can someone guide me about the below issue, i have two ruleset, one for day and another for night. i want that it change auto. 8:00 to 23:00 (day) 23:00 to 8:00 (night). Also if there is...
View ArticleEasing Into Using the New AutoStats Feature - comment by Sandeepyadav
Thanks Carrie :) we are facing one issue due to OBJECT logging( OUC). One fastload is in abort state more than 18 hours. We found on knowlege article KAP316902A. The same has been raised to GSC. Is...
View ArticleEntering and Exiting a TASM State - comment by carrie
Huzain, Instead of using two different rulesets, you can create two different TASM planned environments in the same rule set and TASM will automatically change to the different state by time of day....
View ArticleEasing Into Using the New AutoStats Feature - comment by carrie
Sandeep, I don't have anything more to add than what is in the knowledge article. Once you have opened an incident on a problem with the GSC, it is best to continue to work with the support people...
View ArticleDetermining Precedence Among TASM Planned Environments - comment by carrie
My apologies for the delayed response Smarak, The search for the correct Health Condition starts at the bottom with the highest severity Health Condition and stops when its finds a Health Condition...
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