PPI - response (30) by dwtech
Just reading about the fact regarding the upi and nupi index in the ppi table There are two cases possible: 1. Partition index and primary index are same. 2. Partition index is not the part of PI....
View ArticleQuestions regarding Aggregate Join Index - forum topic by addsmiles
Dear All, We are on TD 13 and want to create an AJI, however the number of columns we need to include exceeds the 64 column limit. Can the gurus help me with some suggestions on the ways around this?...
View ArticleChanging Phone Number Format - forum topic by ciw916
Hello, I have some code that I wrote that joins 2 separate tables: SELECT A.*, B.MTN_1 FROM TABLE_1 AS A JOIN TABLE_2 AS B ON A.ACCT_NUM=B.ACCT_NUM WHERE A.MTN=B.MTN_1 The only problem is, MTN_1...
View ArticleSliding Window Syntax - forum topic by johnajorgensen@yahoo.com
I am not positive this is a sliding window problem, but it is my best guess. I would like to show the current rows values and the next row, on the same output record, and then advance to the next recor...
View ArticleNew staff puzzle about row process、set process、cursor process - forum topic...
hi, i'm a new staff of teradata now i'm preparing for the first exam in the book <<introduction>> ，chapter "evolution of data processing" i can't understand the concept of "row process、set...
View ArticleSliding Window Syntax - response (1) by dnoeth
Hi John, LEAD and LAG are just shortcuts for a basic OLAP function: select id, yr, value, min(yr) over (partition by id order by yr rows between 1 following and 1 following) as next_yr, -- Oracle's LAG...
View ArticleValue ordered NUSI - response (1) by rajeev saravanan
Hi, NUSI is always an all amp operation but not a full table scan. So it will first ask the subtables on all the amps and querying this subtable based on a non eqality condition as it is in the case...
View ArticleChanging Phone Number Format - response (1) by mohan.mscss
Try with the below, sel * from mkformat_1 A join mkformat_2 B on (cast(A.mtn as bigint) (format '999-999-9999')) (varchar(20)) = B.mtnRegards, Mohan
View ArticleSliding Window Syntax - response (2) by johnajorgensen@yahoo.com
Thanks a lot, Dieter. Exactly what I was looking for. And now that I have a context, some of the manual in Chpt 11 actually makes sense to me :-) Appreciate your help. John
View ArticleChanging Phone Number Format - response (2) by KS42982
You can also try something like as it the phone number and lenght is going to be the same all the time - SELECT CAST((SUBSTR('999-999-9999',1,3) || SUBSTR('999-999-9999',5,3) ||...
View ArticleQuestions regarding Aggregate Join Index - response (1) by KS42982
We had a similar kind of issue couple of years ago. What we did was something like vertical partitioning of the table. Meaning, created another table with the same keys and remaining columns that we...
View ArticleINFORMATICA USES SECONDARY INDEXES? - response (3) by hagedorn
How about an UPDATE TPT process workflow? Will it utilize SI if they are created over the columns in the where clause?
View ArticleQuestions regarding Aggregate Join Index - response (2) by VandeBergB
You can build two JI's to "vertically partition" as KS suggested. Your explain plan should show a join between the JI's without even accessing the underlying tables, if you've got it built up correctly.
View ArticleLoad clm with 12 hour time format - forum topic by balu_td
Hi I need to load a file using mload where the load clm has a data like this 03/29/2013 12:00:00 PM. select cast(cast('03/29/2013 12:00:00 PM' as timestamp(0) format 'MM/DD/YYYYBHH:MI:SSBT') as...
View ArticleLoad clm with 12 hour time format - response (1) by KS42982
What if you remove the cast of varchar ? Like, SELECT CAST('03/29/2013 12:00:00 PM' AS TIMESTAMP(0) FORMAT 'MM/DD/YYYYBHH:MI:SSBT')
View ArticleReset rank when date interval exceeds limit - forum topic by Dolm
I've been bashing my brain against this and can't find a way to rank rows that works, though I'm sure this should be pretty simple. What I'm needing to do is reset rank when the interval between the...
View ArticleReset rank when date interval exceeds limit - response (1) by Dolm
I may have found a a solution with the following, this appears to rank the way I wantd. Could someone sanity-check this for me? RANK() OVER( PARTITION BY ID ORDER BY "DATE" RESET WHEN (cast("date" as...
View ArticleValue ordered NUSI - response (2) by Moutusi
Hi Rajeev, Thanks for reply. NUSI sub-tables are AMP local and not hash distributed. Now if the values of the NUSI column in a particular range is located indifferent AMPs, in that case how value...
View ArticleValue ordered NUSI - response (3) by rajeev saravanan
Hi Moutashi, As i said first all NUSI operations are all amp be it value ordered or non the advantage lies in reading the data out of subtable. Terdata works in parallel so it doesnt matter if data are...
View Articleselecting values from a table where max value is null - forum topic by mithunk
I have to select rows from the table where col1=max(col1). Here if the max(col1) is null, i dont get results because NULL cannot be compared as far as i know. Temporarily i have used...
View Article