Search found 7 matches

by Duje
Fri Nov 30, 2012 9:42 am
Forum: Vertica Database Development
Topic: Change PARTITION in Vertica 5.1
Replies: 1
Views: 5642

Change PARTITION in Vertica 5.1

Hello, I need to change Partition on table in Vertica 5.1. According to manual in Vertica 6, it can be done like: alter table event PARTITION BY ((((date_part('year', event at timezone 'UTC') * 10000) + (date_part('month', event at timezone 'UTC') * 100)) + date_part('day', event at timezone 'UTC'))...
by Duje
Wed Sep 12, 2012 3:46 pm
Forum: New to Vertica
Topic: LOCK for tables
Replies: 1
Views: 4826

LOCK for tables

Hi, i'm trying to find any information about locks for table. i'm interested in next case - will select queries work if we inserting data from csv file to Vertica. CSV file will have ~100000 rows. if not, is it possible to avoid this lock? case question if we will do something like: insert into sche...
by Duje
Mon Sep 03, 2012 3:51 pm
Forum: New to Vertica
Topic: Last day in the year/ Quarter
Replies: 1
Views: 7004

Last day in the year/ Quarter

Hi, i'm looking for the way(best way :) ) to get last day in the current year and last day in current quarter. for last year I created next SQL: SELECT TO_TIMESTAMP('31 Dec ' || TO_CHAR(my_date, 'YYYY') || ' 23:59:59', 'DD Mon YYYY HH:MI:SS') as dt_last_year_day FROM my_table. where my_date is a col...
by Duje
Mon Aug 13, 2012 1:34 pm
Forum: New to Vertica
Topic: Select First/ Last records from column A, group by column B
Replies: 2
Views: 10130

Select First/ Last records from column A, group by column B

Hi, i'm trying to get last/ first value from column A, but I need to do it per value in column B. e.g. I have next table (select * from test1): Id Conv_id Agent_id Channnel_id 1 1 1 1 2 1 2 1 3 1 1 2 6 2 1 1 7 2 2 1 8 2 3 1 4 1 3 2 5 1 4 2 9 2 2 2 I need to find last Agent_id per Conv_id. I understa...
by Duje
Fri Aug 10, 2012 2:00 pm
Forum: Vertica Database Development
Topic: Creating System table with a X minutes increments
Replies: 7
Views: 16041

Re: Creating System table with a X minutes increments

Hi guys,
thank you for your help!

Jim, i'm interested in your answer.
could you please explain why do you add
FROM tables
CROSS JOIN columns
as I see I can use only FROm table which will give ne the same result.
by Duje
Thu Aug 09, 2012 11:34 am
Forum: Vertica Database Development
Topic: Creating System table with a X minutes increments
Replies: 7
Views: 16041

Re: Creating System table with a X minutes increments

Hi Rick, not exactly, I want to same a table (system or virtual) with will have date from last 2 years till future(e.g. 2 years). and if last date < 1 year in table, Vertica will automatically create new rows for 2 year more. and the second condition is - DATEDIFF should be 15 min between records. i...
by Duje
Thu Aug 09, 2012 10:05 am
Forum: Vertica Database Development
Topic: Creating System table with a X minutes increments
Replies: 7
Views: 16041

Creating System table with a X minutes increments

Hello, i'm new vertica. Correctly i'm resorting possibly to create a system table (table which will be automatically add new row) for time periods. time difference between records for example 30 min. the general view if table like: date/time in 24H format; date/time in 12 H format; hours ; minute,.....

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