Estimate and Actual are different and causing PJ. - response (4) by BPP
So just you all know we were able to address this.  One of our DBA had identified bad stats (Parition + highly non unique column) were causing the plan to wayward!! Thanks Bhanu P
View Articletuning the Skewed joins - forum topic by sureshv
Hi, A query has a join condition and one of the columns in the join is highly skewed with a single value . Can anybody suggest how can we tune this type of joins. Thanks in Advance Suresh.Forums:...
View ArticleCreating a new secondary index on table - response (6) by teradatauser2
this summarizes the data from dbc.DBQLObjTbl
View ArticleHybrid columnar automatic format - forum topic by sharmaax
Hi, I'm interested in using the columnar feature, and after doing some intinial research, I found that Teradata automatically determines if a column should be row or column format. I was hoping to get...
View ArticleCase Statement on an Inline View - forum topic by Haarish
Hi All, I have a problem that looks weird to me and don't understand why that happens. I have a query which has 2 sets of computations from a table. The first set of computations is an inline view that...
View ArticleCreating a new secondary index on table - response (7) by abhijitvyas
another option that you have is enable DBS parameter ObjectUsecountCollectrate and analyze values of access count and last access timestamp. You will see both access count and lastaccesstimestamp value...
View ArticleTrying to round result of a computation to 2 digits of precision - forum...
Hi, I read through the forum on such topics as CAST and ROUND, but somehow I am not having any luck. I have this expression in my select: Select cast (PROJ_INV_CS as float) / case when...
View ArticleAlgorithmic compression in DBQL History tables - response (1) by TSchmolzi
ALC seems to work just fine. It didn't do a whole lot on the DBQLog table but I saw a significant compression rate of 80% with LZCOMP. NTA3239 just surfaced. It concerns possible corruption when using...
View ArticleTPT load in informatica giving CLI Error - forum topic by Prabhakar Thangapandi
Hello, Greetings.... I am loading Teradata (V13.10.03.08) database using informaticav9.1.0 (with Hotfix1). In Infa, i am using TPT connection. I have the follwing property on the TPT Connection string...
View ArticleAlgorithmic compression in DBQL History tables - response (2) by TSchmolzi
Just reread my post. Â I meant to say that I got an 80% compression with LZCOMPon the DBQLSQL table.Â
View ArticleQuery using the Sys_Calendar to return quarterly results - forum topic by...
Good Afternoon, Could someone help me create a query that will return quarterly results? I have one for EOM and Previous Week, now I'm looking for a quarterly view.. Is that possible?Forums: Database
View ArticleUnique gapless ID:s from system - how to? - forum topic by bladerunning_Finn
After googling around as well as browsing this forum, I failed to find the solution to get gapless sequential ID:s from a TeraData system - is there one? Conflicting information on usefulness of e.g....
View ArticlePlease explain the different behavious of substr - forum topic by barani_sachin
Please explain how this wotks. SEL SUBSTR(CAST(12345 AS VARCHAR(5)),1,3) This gives "123" as OP whereas SEL SUBSTR(12345,1,3) gives only "12", why does when passing integer/number it always reduces one...
View ArticleCreating a new secondary index on table - response (8) by pawan0608
Is it a custom table or a system defined DBQL table in DBC ?
View ArticleArcmain - response (3) by pawan0608
I have used ARCMAIN and TARA and usually they run smoothly. I am not sure what type of objects you are trying to restore. If possible, try copy instead of restore to see if it is successful or not
View ArticlePlease explain the different behavious of substr - response (1) by shilpa1
For integer first byte is a Signed Byte, which is used for storing sign "+/-". Thats why for positive value, you are getting " 12" as output.
View ArticlePlease explain the different behavious of substr - response (2) by dnoeth
SUBSTR(CAST(12345 AS VARCHAR(5)),1,3) This is an explicit cast to a VARCHAR using ANSI style syntax, which results in a left-aligned string, the result is the same as a SUBSTR('12345', 1, 3)....
View ArticleDrop Temporary Tables - response (1) by dnoeth
Hi Tony, DROP TEMPORARY TABLE db1.table1 ALL; This drops bith the template and all materiaklized versions. If there's an open transaction using that table the drop will be blocked until the transaction...
View ArticlePlease explain the different behavious of substr - response (3) by barani_sachin
Thanks for the explanation :)
View ArticleDrop Temporary Tables - response (2) by pawan0608
I guess, we can't use TEMPORARY keyword with ALL
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