Secondary Index - response (5) by trustngs
Hi, Say, a table is having one column NUSI and stats are collected on that index. What will happen to stats when the NUSI is dropped?
View ArticleHyperlink in teradata table - topic by Himanshu_Acc
Hi, My requirement is that i need a field (column) in a table to be populated with a hyperlink, i am new to teradata and do not know whether thic can be achieved or not. Can anyone help me out please....
View ArticleODBC Connection issues with Teradata 14 on VMWare Player - topic by TDAdmin
Hell Folks, I am receiving this disgusting error, tried many ways to figure this out but couldn't succeed. See if you can help. Here is the setup on Windows 7 Pro 64 Bit OS. read more
View ArticleODBC Connection issues with Teradata 14 on VMWare Player - topic by TDAdmin
Hello Folks, I am receiving this disgusting error, tried many ways to figure this out but couldn't succeed. See if you can help. Here is the setup on Windows 7 Pro 64 Bit OS. read more
View Articlehow to import td12's Queryman.mdf to td13's history - topic by williambaldwin
in the past,i used teradata version 12.0, the file named Queryman.mdf record the many informations about operations. Now i begin to use teradata version 13.0. i want to know how to import the...
View ArticleSql to delete duplicates in Teradata - response (14) by Jacobz
Hi, Did anyone get the exact solution for this?. When I have gone through all the statements above I couldnt see the correct one! Let me start from the top, Please correct me if I'm wrong, @emilwu I...
View ArticleCharacter PPI question - topic by HelmutR
Hi, I'm new to Teradata and have a question on creating a table with a CPPI. I have a table with a few hundered million rows. I want to create partitioning on a column called SAP_CODE whose structure...
View ArticleHow to Delete all objects in a particular database? - topic by usmans
I understand that before you can drop any database you have to delete all the objects it contains. I used the "help database database_name" command and it showed me that my particular database had 61...
View ArticleSecondary Index - response (6) by KS42982
If the stats are collected on the index (NUSI) and NOT on the column then stats would be dropped if you drop the index.
View ArticleIncrease the size limit of teradata objects name from 30 characters to more....
Thanks for the info Todd.
View ArticleSecondary Index - response (7) by dnoeth
If stats are collected on a single column NUSI and that index is dropped, the stats are *not* dropped. This only happens for multi-column NUSIs, but not in TD14 anymore. Dieter
View ArticleSpace in the database - response (3) by dnoeth
One suggestion: instead of "SUM(CurrentPerm)" you should consider using "MAX(CurrentPerm) * (HASHAMP()+1)" because this includes wasted perm due to skew. This the minimum perm space needed to store the...
View ArticleHow TD Analytical Functions Are Implemented? - response (2) by dnoeth
Hi Igor, afaik in the manuals there's not much details on the internal implementation of OLAP functions. - OLAP functions might skew in spool, cause the data is distributed based on the PARTITION/ORDER...
View ArticleGetting started - topic by eng_hema
Hello I am new in teradata world , i used to use Oracle as my database. if any one can tell me from where to start learning teradata concepts, and what is the difference between oracle and teradata in...
View ArticleSpace in the database - response (4) by KS42982
Thank you. Do you have any suggesion for my second question ?
View ArticleSpace in the database - response (5) by dnoeth
If it's a large number of rows you calculate the average rowsize based on datatypes, add the row overhead (14+ bytes) and multiply times the number of rows. This is the approximate size of the...
View ArticleLog Option While Creating Table - response (3) by rajeev saravanan
Thanks Dieter Also i am having diffculty in finding the download link for the windows version of TD 12 /13 express editon for developers. Can anyone suggest me the correct link ? Thanks Rajeev
View ArticleHyperlink in teradata table - response (1) by Qaisar Aftab Kiani
The hyperlinks are basically the character string. So you can define the field as VARCHAR and insert the hyperlink in the field, there shouldnot be any difference in hyperlink text and normal text...
View ArticleGetting started - response (1) by Qaisar Aftab Kiani
Depending on the usability of the system one has the advantage over the other, e.g. for OLTP systems you get much better performance in Oracle than Teradata but for OLAP systems Teradata has advantage....
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