Table partitioning on TIMESTAMP(3) in Teradata 13 - response (9) by Adeel...
Perfect .... Dieter :)
View ArticleFastLoad And Query Access - response (3) by Adeel Chaudhry
Will try it out .... never seen that .... may be probability is very low. Good info Dieter! :)
View ArticleRedistribution with LOJ despite same PI - forum topic by m.tahoon
when i Join two tables having the same PI using Left outer Join on the PI (same column on both tables) ; Redistribution occur. However Inner join do not cause redistribution [by way of a RowHash match...
View ArticleTable partitioning on TIMESTAMP(3) in Teradata 13 - response (10) by...
Hi,i am new to teradata, can you please explain the primary index mechanism of data distribution
View ArticleWill volatile tables be dropped? - response (8) by barani_sachin
Hi Dieter,Its happenign all the time, No, there is no error handling in the SP,PFB the skeleton of the SP, Please give your thoughts on thisREPLACE PROCEDURE temp ( IN Temp1 VARCHAR(50) ) SQL SECURITY...
View ArticleWill volatile tables be dropped? - response (9) by barani_sachin
@Adeel - No i am not using any Dynamic SQL's to create VT's. Even if i am using that, what kind of issues that will throw?
View ArticleQuery Tuning - response (10) by MBR
Yes Dieter its the part of daily load from STG to TGT runtime is 11 AM and i am not getting what is the cputime?
View ArticleSampled Stats vs Time trade-off - response (2) by m.tahoon
Thanks Dieter Carrie blog is very useful and having date columns not samples is on our plan now.I've noticed when minimizing the Sample size the number of values computed decreases; which can be...
View ArticleDIFF BETWEEN PRIMARY KEY AND PRIMARY INDEX - forum topic by sai_666
hI,iam new to teradata . So please tell me the diff between primary key and primary index.Regards, SaiForums: Database
View ArticleDIFF BETWEEN PRIMARY KEY AND PRIMARY INDEX - response (1) by barani_sachin
Using Primary Index Teradata distributes the data in it's AMP's. Primary Key is an logical concept used by all the RDBMS, and it helps to uniquely identify each record in a Table.
View ArticleDBSControl Internal flag DISABLECAR - response (1) by Duri83
Hi, so if anyone will read this and was wondering. This can disable Column Access Rights.
View ArticleCovered Query - forum topic by rajeev saravanan
Hi All,I would like to know about Covered query , what it is and how does it improve the performance ?When do we decide to go for a covered query Regards R.RajeevForums: Database
View ArticleNeed help to improve the performance of the query - forum topic by Gowtham
please help me to improve the performance of the below query, it is running for nearly 15hrs... sel columns from ((sel columns from TABLE where conditions) V0300 INNER JOIN (sel columns from TABLE...
View ArticleTable partitioning on TIMESTAMP(3) in Teradata 13 - response (11) by KS42982
There are lot of documents available online to understand the primary index mechanism of data distribution. If you are new then you can start with this very basic document....
View ArticleDifference between Create table Statements - response (8) by KS42982
That is true the PI of second case is the same as the table as I took the definition of table1 to create table2. However, I thought in the option 1 when you do CREATE TABLE AS SELECT, the new table...
View ArticleOptimizer's inability to resolve variables for partitioning - forum topic by...
DB VERSION 13.10.05.02I'm attempting to understand how does the optimizer resolve (if at all) dynamic variables (subquery) for partition elimination. Here is an example,CREATE TABLE SSURI.CDC_BATCH(...
View ArticleOptimizer's inability to resolve variables for partitioning - response (1) by...
DB VERSION 13.10.05.02I'm attempting to understand how does the optimizer resolve (if at all) dynamic variables (subquery) for partition elimination. Here is an example,CREATE TABLE SSURI.CDC_BATCH(...
View ArticleNeed help to improve the performance of the query - response (1) by KS42982
It is very difficult to suggest about performance imrpovement of query without knowing anything about the tables, especially all you are doing is joining bunch of table on some conditions. I can only...
View ArticleDIFF BETWEEN PRIMARY KEY AND PRIMARY INDEX - response (2) by KS42982
If you are absolutely looking for the differences then below are few - PRIMARY KEY PRIMARY INDEX1 It cannot be NULL It can be NULL 2 It is not mandatory in Teradata It is mandatory in Teradata 3 It...
View ArticleDIFF BETWEEN PRIMARY KEY AND PRIMARY INDEX - response (3) by KS42982
Sorry about the formatting, but not sure, why teradata forum is removing all the lines and spaces today.
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