CASESPECIFIC What is its purpose? - response (3) by zigzagdna
Dieter, Chinmay: Thanks a lot. I am actually using Terdata Studio Express 14.x on Suse Linux. By default., it probably uses ANSI mode. I have not found how to set it to use TRadata mode. Since I am...
View ArticleCASESPECIFIC What is its purpose? - response (4) by dnoeth
You set the transaction mode in the connection string: TMODE=ANSI/TERA/DEFAULT Regarding "best mode" you should check your system's default. Most systems still use Teradata sessions and there are some...
View ArticleFind position of a character in a string - response (8) by dnoeth
Hi Carlos, no excuses, you're welcome :-) Of course you can use a cross join to a number table to split a string, but performance mainly depends on the defined size of the VARCHAR - cross joining a...
View ArticleCASESPECIFIC What is its purpose? - response (5) by zigzagdna
Dieter: Thanks so much, I looked in JDBC Connecton parameter set in Terdata Studio Express and it was ANSI, but I now changed it to TERA, I can verify that results NOT CASESPECIFIC select * from...
View ArticleStarge No more Spool Space Error - forum topic by zigzagdna
I am new to Teradata. I am using Teradata 14.x on SuseLimux (vm image supplied by Teradata). I connect using dbc in Teradata Studio Express and then run following statements: create user premtest2...
View ArticleStarge No more Spool Space Error - response (1) by zigzagdna
No more spool space in premtest2 (and not premtest3). Looks to me some misleading error message, root cause may be something else.
View ArticleStarge No more Spool Space Error - response (2) by dnoeth
Spool space is used for intermediate results/sorting/answer set. When you click on "Tables" a query will be submitted to retrieve that information from Teradata's system tables, either a "SELECT...
View ArticleTeradata Hot-Back up - forum topic by mayya@teradataforum
Hi, We carry out Hot back-up of our databases i.e. our processes will be running at the back end and database back-up at the same time. Just i want to know that how this process will be carried out....
View ArticleStarge No more Spool Space Error - response (3) by zigzagdna
Thanks a lot. I increased my spool space to 500M and now I am not getting that error.
View ArticleDesign change / Perf Optimization Suggestion required - response (1) by Fred
For TD13.10 or later, you could use a scalar subquery: SEL count(1) FROM ( SELECT RTL_ID RetailID, CATG_ID CATGID, Shipment_Dt , MAX(Catg_Store_Selling_13Wk_Cnt) AS CatgStoreCount...
View ArticleAccess Right Abbreviations - response (6) by Fred
See the Data Dictionary manual for the appropriate release for a complete list. SH = Show GC = Create GLOP GD = Drop GLOP GM = GLOP Member OP = Create Owner Procedure
View Articleteradata partioned primary indexes - how to split and merge partitions -...
I have worked with range partitioning in sql server and Oracle. There are alter table statements to split and merge partitions. I have not seen any clear documentaion in Teredata. I am interested in...
View ArticleHow to Calculate the total IO used by System for a particular week - forum...
Hi Everyone, The last week was a very busy one on my project. I saw AWTs being consistently used in the range of 60-70. I have calculated the CPU Utilization for the time period mentioned. The client...
View ArticleMLPPI question - response (3) by Deepak Agrawal
I have questions related to MLPPI as I was studying it from Physical DB design manual from SoCal Library. in the module 7, its mentioned that with below table and query, will utilize MLPPI. CREATE...
View ArticleMLPPI question - response (4) by Shelley
You do not need to specify values for all partitioning columns to make use of an MLPPI. It will still be used if you only specify values for one or two of the partitioning columns . It is the PI (...
View ArticleFind position of a character in a string - response (9) by CarlosAL
Dieter: Agreed, but I was only giving another choice to the OP. I don't know the requirements and varchar sizes, and some people find it hard to deal with recursives... The OP wanted "find out the 4th...
View ArticleMLPPI question - response (5) by Deepak Agrawal
Thanks Shelley. I have just checked it by writing some SQLs and now understood the concept. Thaks for your input.
View Articleteradata partioned primary indexes - how to split and merge partitions -...
Oracle (and SQLServer) implements partitions as dedicated storage ('segments' in Oracle). A table has diferent partitions, which are segments (sort of 'subtables', loosely speaking). In Teradata this...
View ArticleSkew Ness - forum topic by rajesharra
Hi, I know if we are not creating and loading table with out proper primary index, will be getting skew ness in AMPS. But i head that even if we create a table with proper primary index, but if it has...
View ArticlePerformance Tuning - forum topic by godspeeddeepak
Performance Tuning of SQLs results in reduction of Execution Time and CPU Utilization. What are different ways to quantify or measure this in terms of dollars?Forums: Database
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