Utility Session Management - It's Inside the Database in Teradata 13.10!...
Hi Carrie, There is limit for load utilities (fastload Mload etc) in Teradata system that is handling by MaxLoadTask parameter in DBS control. According to this we can increase this filed value up to...
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Hi Carrie, While doing capacity planning for a system, where I have an idea of amount of data that I am expecting, how can I decide how many Node I have to use for that? Thanks
View ArticleStatistics Collection Recommendations – Teradata Database 14.10 - comment by...
Hi Carrie, Thanks for the valuable information. Actually we are planning to enable Auto Stats from lower to higher environment. As part of testing, I did following testing on following cases to ensure...
View ArticleStatistics Collection Recommendations – Teradata Database 14.10 - comment by...
Hi Carrie, Is there any solution to handle the Auto stats (via Auto scheduler) during maintenance window. the question here is, assume the stats are scheudled to run during this maintenance window...
View ArticleHow to set a System-Level CPU limit for Capacity-on-Demand - comment by...
Can you give some idea for #AMP/Node for latest Teradata Models ?( Teradata Box 6690,6700)
View ArticleHow to set a System-Level CPU limit for Capacity-on-Demand - comment by carrie
It would be best to ask both of your questions of Teradata associates who specialize in hardware setup and configurations. Unfortunately, that is not an area of experience for me. You can speak with...
View ArticleStatistics Collection Recommendations – Teradata Database 14.10 - comment by...
The only information I currently have on AutoStats has been posted on Developer Exchange at: http://developer.teradata.com/blog/carrie/2013/12/easing-into-using-the-new-autostats-feature In addition,...
View ArticleStatistics Collection Recommendations – Teradata Database 14.10 - comment by...
Harsha, Why don't you talk to your Teradata account team and ask if they can help you locate a resource to answer questions you have on AutoStats. Unfortunately, I am not that person, but I do know...
View ArticleUtility Session Management - It's Inside the Database in Teradata 13.10!...
Sandeep, Once you are using TASM, or even just using the throttle category of TASM, the DBS Control parameters (MaxLoadTasks and MaxLoadAWTs) are no longer honored. Under those conditions, load jobs...
View ArticleStatistics Collection Recommendations – Teradata Database 14.10 - comment by...
Hi Carrie, Thanks for your response, Actually i already gone through all the forums in Developer Exchange related to Stats. I got clear understanding from these Amazing articles on Autostats. As part...
View ArticleNew opportunities for statistics collection in Teradata 14.0 - comment by...
Hi carrie, In the 14.0 orange book, section 2.1.5 Column Ordering for Multicolumn Stats, it says that column ordering is honored with the exception of the statistics collected with Index specification....
View ArticleNew opportunities for statistics collection in Teradata 14.0 - comment by carrie
Nazy, If the INDEX specification is included in the multicolumn collect stats statement, the columns will be reordered to match the index. This is because the index columns are already ordered in a...
View ArticleNew opportunities for statistics collection in Teradata 14.0 - comment by...
Hi Carrie, I have a MERGE query which runs 2 -3 times a day on a table which is PPI.Suddenly yesterday the query ran for more than 5 hours where the avg execution time for the query is 15min. When i...
View ArticleNew opportunities for statistics collection in Teradata 14.0 - comment by...
Thanks Carrie. That was very helpful... I have another question. If I understand correctly, if we drop stats on a table, we lose history. If we drop a table, we will also lose history. So, when we...
View ArticleRecommended Dictionary Statistics to Collect in Teradata 14.0 - comment by...
Hi Carrie, I have stats collection run on DBC tables rcommended above daily. But it looks like , and according to 14.10 orange book on stats, the collection skips,,, the optimizer internally enforces...
View ArticleNew opportunities for statistics collection in Teradata 14.0 - comment by carrie
Response to HateOra: From a statistics point of view, make sure you have followed all the recommendations for PPI table statistics that are provided in this blog posting:...
View ArticleNew opportunities for statistics collection in Teradata 14.0 - comment by carrie
Response to Nazy: You can export stats and then after you have inserted into all rows into the new table, you can import them back. When you issue this command: SHOW STATISTICS VALUES ON...
View ArticleRecommended Dictionary Statistics to Collect in Teradata 14.0 - comment by...
Hi Nazy, You are correct that there is an internal time threshold set for all data dictionary tables of 15 days. Using the default settings, when you submit a stats collection on a dictionary table...
View ArticleNew opportunities for statistics collection in Teradata 14.0 - comment by...
Hi Carrie, I am not sure I quite understand the Syssampleoption in DBSControl. When its set to 0 or 1(default), does it mean all stats collections are sampled based on the optimizer deciding on the %,...
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