Issue with Decimal(38,0) data type in BTEQ - response (2) by suresh1802
Thanks Dieter.....Both of them are working.....
View ArticleIs mload delete faster than the Bteq delete? - response (3) by suresh1802
Yes, if you give any inequality condition in where clause, it will go for FTS (as per my knowledge).... And to answer your question...let me rephrase the question this way......Do you want to...
View ArticlePartition Elimination - Using Subquery Route - topic by indrajit_td
Hi, We have the following tables being used in a query: FACT TABLE: CT MY_FACT (fact_key integer, dim1_key integer, dim2_key integer) primary index (fact_key) partition by (range_n (dim1_key between 0...
View ArticleIs mload delete faster than the Bteq delete? - response (4) by williams22
mload delete is faster as it deletes data row by row!!
View ArticleIssue with Decimal(38,0) data type in BTEQ - response (3) by williams22
i too found the same problem. I tried FORMAT 'Z(38)' or FORMAT '9(38)'. It worked. Thanks for Sharing!!
View Articlehow to delete my account - topic by anjunair
Hi , For some personal reasons I would like to delete my account . How can I do that?
View Articlere:spool space - topic by vijayshankar245
When i get an error stating 'NO MORE SPOOL SPACE IN USER' what does it mean? My understanding is that spool space is allocated equally across all AMPs and upper limit is defined for an USER. For...
View ArticlePartition Elimination - Using Subquery Route - response (1) by Remi
Hi, There is no way the explain can predict the set of values returned by your subquery, so the partition elimination won't work here. However, this doesn't necessarily mean that the partitionning...
View Articlepartition question - response (3) by Remi
To answer the last question, if I get it right, NO RANGE is just another partition for any value out of the range you have defined. So partition elimination can also be leveraged for a value that is...
View Articlere:spool space - response (1) by Qaisar Aftab Kiani
Your understanding is correct! If the required spool space for a USER's query on one AMP is less than what is currently available then TD can't hold the intermediate results in spool and thus end up...
View ArticlePrimary Index on VARCHAR column - response (2) by chand308
Will there be any performance degradation when we join CHAR to a VARCHAR column?
View ArticleSQL to find Row Count - response (6) by chand308
Dieter, I have been doing the same way you mentioned. We are using Informatica for data movement within teradata using pushdown optimization. There can be multiple insert/merge/update statements in...
View ArticleRE: Stats collection and Performance - response (1) by chand308
In any scenario does collecting stats on the columns that are not required will degrade the performance of query. I understand that collecting stats itself is expensive as it will do FTS, but in any...
View ArticlePrimary Index on VARCHAR column - response (3) by Qaisar Aftab Kiani
No there won't be any difference as both the data types belong to text domain.
View ArticleRE: Stats collection and Performance - response (2) by Qaisar Aftab Kiani
Collecting stats is a time and resource consuming process so if the columns are not used then you should avoid it. But if the columns are not used in the query then there is no impact on the query...
View Articlere:spool space - response (2) by venkylingutla
all your words are correct but spool space problem depends on processing data and index selection on columns. If ur processing data goes into one emp which is holding only 1gb spool then it will fail...
View ArticleTeradata Update Syntax - response (15) by venkylingutla
UPDATE cust_zone_sales k FROM ( SELECT 1420 AS main_zone_id, 17 AS zone_no, COUNT(*) AS sales_count, (SUM(usd_amount) + SUM(euro_amount) ) AS sales_sum FROM new_cust_table a INNER JOIN...
View ArticleOptimize Data Dictionary Queries - response (6) by penfold_001
I get a similar problem on a Teradata Version 13.10 VM. Have you managed to find out what the problem is? My VM is hosted in Win 7 64-bit workstation. 2 Gb Ram and 2 Processors are assigned to the...
View ArticleCheckSum - response (4) by shravan@kumar
This info regarding checksum is very useful. I have some questions in this regard. In case of dik errors what will happen to the table?...
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