Can multiple joins be avoided for the same table? - response (6) by dnoeth
That's a variation of the common problem "how many working days were needed to process this task": Add a new SMALLINT column to your calendar table like holiday_seqnum and populate it once with a...
View ArticleDisctribution of rows in Fall back AMPs - response (3) by mayya@teradataforum
Hi, I searched this Manual in "http://www.teradatamagazine.com/" after registering to it but I cannot find such manual to refer. Where actually i can get such Teradata manuals? Please help me out.
View ArticleDisctribution of rows in Fall back AMPs - response (4) by dnoeth
Hi Mahesh, you'll find all Teradata manuals at http://www.info.teradata.comDatabase Design Or better get the full set:Teradata 14.10 User Documentation CD-ROM No need to register ;-) Dieter
View ArticleConverting CONNECT_BY_ROOT function in Oracle to Teradata - response (1) by...
Hi Ajay, CONNECT_BY_ROOT is usually the same as a column from the seed query. There's an old article on IBM's DeveloperWork showing how to port from CONNECT BY to WITH RECURSIVE, most can be applied to...
View ArticleImproper column reference in the search condition of a joined table -...
SELECT DATE as SYS_DATE, T1.KSN_ID, T1.ITEM_ID, T1.DVSN_NBR, T2.CAN_CARR_MDL_ID, T2.NETWORK_DISTRB_CD, T3.KM_DAY70_CHK_STR_QTY, T5.LOCN_NBR,T5.SERV_DC_NBR, b.DC_CD, c.THIRTEEN_WK_FRCST, SUM (DISTINCT...
View ArticleCollect Statistics - response (4) by Divine786
I am taking a join on a index column & its taking time to execute the following query SELECT A.ACCOUNT_NUM AS ACCOUNT_ID, A.Limit_Type_Cd, A.Acct_Limit_Amt, A.Acct_Limit_Expiry_Dt,...
View ArticleCollecting statistics - response (3) by Divine786
I am taking a join on a index column & its taking time to execute the following query SELECT A.ACCOUNT_NUM AS ACCOUNT_ID, A.Limit_Type_Cd, A.Acct_Limit_Amt, A.Acct_Limit_Expiry_Dt,...
View ArticleCollecting statistics - response (4) by dnoeth
Are the estimated numbers close to the actual ones? How many nodes does your system have? What statistics exist? -> HELP STATS tablename What are the PIs of your tables? Dieter
View ArticleDisctribution of rows in Fall back AMPs - response (5) by mayya@teradataforum
I got them Dieter. thanks a lot.
View ArticleCollect Statistics - response (5) by Shelley
You need to show the ddl of the tables, the stats that are collected and the explain from the query to help determine why it is performing slowly. --Shelley--
View ArticleWeekday and Time function - forum topic by dmenzaghi
Hi all, i'm new in this forum. I have to simple problems that i cannot solve: - I need to find a function that calculate in Teradata the weekday of a date variabile. - i need to compare a Time variable...
View ArticleWeekday and Time function - response (1) by KS42982
To find out the weekday of a date, you can use - SYS_CALENDAR.CALENDAR To compare the time variable with the constant value, you can put the constant value in the quotes as you did in your example with...
View ArticleDBQL Logging time is not in sync with teradata timestamp - forum topic by...
I am doing a testing of DBQL log tables. I enabled DBQL logging for a user 'ABC' and noted the current timestamp in teradata as below select current_timestamp(2)(title '');8/21/2013 18:14:22.04 and...
View ArticleWeekday and Time function - response (2) by dnoeth
There's no built-in function for weekday, but besides a calendar you might do a simple calculation, e.g. this will return monday as 1: REPLACE FUNCTION day_of_week(cdate DATE) RETURNS BYTEINT SPECIFIC...
View ArticleMigrating From Oracle To Teradata Help With DDL Generation - response (2) by...
Hi, Thanks Aravind The client is not willing to add another client tool that leaves us just with oracle,infa and TD (database) Is there any other way or logic which we can follow ? Thanks R.rajeev
View ArticleCan multiple joins be avoided for the same table? - response (7) by SmarakDas
Thanks a ton Dieter. I used your suggestion into the SQL and now,the running time is great. Your suggestion really made all the difference.
View ArticleCombining multiple rows into a single row - forum topic by wayneoon
Hi All, This may have come up before but I'm not getting the answers that I'm seeking for, so I'm going to start a new thread here. Here's the problem: I have a table that stores customer info,...
View ArticleDistinct in Case clause - forum topic by dmenzaghi
Hi all, this is my input table: val1 val2 val3 val4 111 5 aa 13:00 111 8 bb 13:00 111 12 cc 8:00 This is the query i used: .. .. case when ( distinct val4 < time '12:00:00'...
View ArticleDistinct in Case clause - response (1) by Adeel Chaudhry
Please share the desired output of the dataset as well.
View ArticleMigrating From Oracle To Teradata Help With DDL Generation - response (3) by...
If not willing to use any other software .... no other option. You must do data-type conversion and index changes manually. HTH! Regards.
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