two similar tables - very different import speed - response (3) by dnoeth
Each record is less than 500 bytes and adding 10 bytes shouldn't cause any difference, strange. Without more info it's hard to say what caused this. Is this repeatable? 300.000 rows in 30 minutes is...
View ArticleEXPLAIN IN XML Plan Truncated in JDBC in Teradata 13.10 - response (1) by...
I have not heard of this problem before. Your profile says that you work at Cisco. You should open an incident with Teradata Customer Service to report the problem.
View Articlejoining two tables using SUBSTR - response (3) by gerardo
Try this one: sel * from tb1 a , tb2 b where b.cntry_code like '%'||trim(a.cntry_code)||'%' ; You will get these pairs: a.cntry_code b.cntry_code FL FL,CHG,MN DET...
View Articletwo similar tables - very different import speed - response (4) by Raja_KT
Even if you say "regular basis" before, maybe you can check the workload history then and compare with the present one. It is just a thought. Cheers, Raja
View ArticleAccount Strings - AG - response (3) by geethareddy
Hi Dieter, Is there any limit on number account strings that need to be created for one system. Currently we are each one for individual user and databse (except, for DBA's Developer's, and some system...
View ArticleAccount Strings - AG - response (4) by dnoeth
Hi Geeta, i don't know if there's a limit, but i don't think so. Hopefully there's a pattern, so you can easily map account strings to PG based on wildcards in TDWM.
View Articlejoining two tables using SUBSTR - response (4) by dnoeth
This will also return a row for 'CH' matching 'CHG', you have to change it slightly: SEL * FROM tb1 a , tb2 b WHERE ','||b.cntry_code||',' LIKE '%,'||TRIM(a.cntry_code)||',%' ; And it will cause a...
View ArticleAccount Strings - AG - response (5) by geethareddy
Thanks for quick confirmation. May be i will check with masters and Teradata.
View ArticleIndex Cocepts in Teradata - response (11) by s@ir@m
Hi all, can you tell me bellow mentioned which one is better ? merge join or hash join or nested join Ratnam
View ArticleIndex Cocepts in Teradata - response (12) by M.Saeed Khurram
Hi Ratnam, Basically these three are join processing strategies used by Teradata, and decided by the oprimizer based on number of factors. I think they are not availbel for the developer to choose...
View ArticleAccidental Cartesian Join Bug - response (2) by gboundy
Are there any plans to fix this "feature" or provide a way to disable it as Dieter suggests?
View ArticleNew to the forum and need some help restoring permanent journals and rolling...
Hi, I've never posted before. I'm in the process of doing a "Disaster Recover Simulation" . I've restored my databases from a "FULL" backup and now I'm trying to roll forward a few days of our...
View ArticleHow to cast a clob to varchar - forum topic by pmehrotr
I have a clob cloumn called mytext select substr(mytext, 1, 500) from my table Still substr is returned as clob because it is taking me to store this reuslt in some file in Tredata Studio. How can I...
View ArticleNeed alternative to DBQL processing - forum topic by sk73
Hello Friends, I have to identify tables that are/were not accessed by any user since the past 6 months or so. The access could be select, update, delete, insert, show or help. If no-one has run any...
View ArticleIndex Cocepts in Teradata - response (13) by s@ir@m
thnku khurram,Raja i am new in teradata , you are posts is easyly underastand , Ratnam
View ArticleFastLoad lock Type - response (2) by diptera
Dieter, Let's say my FASTLOAD failed for some error. In that case, if I need to release the lock, should I write a script with this table as a fastload but not keeping any insert statement and (most...
View ArticleTERADATA LOCK LEVELS - forum topic by diptera
Hi All, While studying for Teradata lock, I became a bit confused regarding level of locking. Instead of givingh specific examples I will directly ask my query here. From DML, how optimiser decides it...
View ArticleHow to cast a clob to varchar - response (1) by pmehrotr
I figured out it myself.selectcast(substr(mytext, 1, 500) ASVARCHAR(500)) as mytext2
View ArticleFastLoad lock Type - response (3) by Raja_KT
Hi Dipanjan, I am not Dieter, but let me give some directions: In the fastload manual: To restart the job if the Teradata FastLoad job was paused during the end loading phase 1 Use the same LOGON...
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