Difference between Merge and Update statements - response (1) by dnoeth
Hi Sudhakar, when both sorce and target share the same PI definition you should get AMP-local processing without redistribution, this is one of the advantages of Merge. Could you show some more...
View ArticleIs the popular opinion that DELETE ALL doesnt use the Transient Journal true?...
Hi Dieter/Fred, Just want to clear my doubt that if DELETE statement is the last/Only statement whether its a ANSI or TD mode , it will always Omit the TJ .. Am I Correct here? Please correct me if i...
View Articlequalify rank() over (partition.....question - response (7) by Kanch
Hi Dieter , I have the similar requirement with slight change , need your Help in that - My dataset is as below - Company ID Effective Date Status Codes C1 1st March...
View ArticleTraining - response (1) by cshanmug
Any good training institute in India to learn Teradata
View ArticleCreating a new secondary index on table - response (2) by teradatauser2
Hi Srinivas, Could you please share the sql and explain this a little, that will be helpful. Thanks !
View ArticleDBQLOBJTBL - unknown values - response (4) by teradatauser2
I have posted another question for choosing secondary index on a table. Someone pointed to use this column for taking this decesion. Can anyone share sql and explain how this column value can be use...
View ArticleCreating a new secondary index on table - response (3) by pawan0608
You Can use SQL like this SEL * FROM dbc.DBQLObjTbl WHERE ObjectType = 'Idx' AND ObjectNum = 4 /* or whatever is your secondary index number 8, 12, 16 ... */ AND ObjectDatabaseName = <your database...
View ArticleDBQLOBJTBL - unknown values - response (5) by pawan0608
I have responed to your original post
View ArticleAny good training center to learn teradata in Bangalore - forum topic by...
Any good training center to learn teradata in Bangalore,IndiaForums: Database
View ArticleDivision by zero Error - forum topic by SANJI
I'm trying to execute a query which fails on divide by zero error. Can't use a NULLIFZERO because the AJI would be ignored. Following is the query which fails on "SELECT Failed. 2618: Invalid...
View ArticleDivision by zero Error - response (1) by dnoeth
Is this the actual query? There's no division at all. Is it based on a view with a division in it? Otherwise you might get a "Division by Zero" even when there's no single row with a zero in it if you...
View ArticleDivision by zero Error - response (2) by SANJI
It's failing on the AVG() function. SELECT DISTINCT C0, C1, AVG(C2) OVER (PARTITION BY C0,C1) AS C5
View ArticleIs the popular opinion that DELETE ALL doesnt use the Transient Journal true?...
Hi Nishant, it's a FastPath Delete when there's no Trigger/Foreign Key/Join Index and it's known to the optimizer that it will be commited. i.e. the explain must show the END TRANSACTION step. For ANSI...
View Articlequalify rank() over (partition.....question - response (8) by dnoeth
Hi Kanch, i don't get your requirement, you should post some more data and more detailed explanation, why you need which output. Dieter
View ArticleDivision by zero Error - response (3) by dnoeth
When you're 100% shure it's failing due to the AVG you should open an incident. AVG(col) is SUM(col)/COUNT(col), a divivion by zero is only possible with be a zero as the result of a COUNT when there...
View ArticleDivision by zero Error - response (4) by SANJI
Well, i can do the following without errors 1> SELECT * from (Query) 2> SELECT C0,C1, C2 from (Query) But, when i try to do a SELECT C0, C1, AVG(C2) OVER (PARTITION BY C0,C1), it fails with...
View ArticleTeradata Viewpoint - forum topic by Smarak0604
In Teradata Viewpoint System Health Portlet, on multiple occasions, I have encountered High CPU Skew or High I/O [More than 80 %] when the number of Active Sessions is Zero. How is this Possible? The...
View Articlequalify rank() over (partition.....question - response (9) by Kanch
Hi Dieter , I am having a company record in table having different status stored as below - Comapny ID - company identifier Effv Date - Date on which record is getting inserted to table Staus Codes -...
View Articlequalify rank() over (partition.....question - response (10) by dnoeth
Hi Kanch, so you don't want all the changes, just the last one plus the most current row: SELECT * FROM ( SELECT * FROM tab QUALIFY -- get the most current row and all rows where the status changes in...
View ArticleLENGTH not working - forum topic by PeterSchwennesen
Hi. I have some problems with Length calculating function in TERADATA. I am using Teradata SQL Assistant 13.11.0.05, some of my colleges are using version 7.????. I cannot use the LENGTH function but...
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