Latest Activity

code

Conversion of Teradata Text Column to Decimal with Conditional Zeroing in Denodo

I am currently facing a challenge in Denodo related to the conversion of a Teradata column named "Amount" with a data type of Text. The goal is to convert this column to Decimal to do sum operations. Additionally, I want to handle cases where the colum...

Data Type Conversion string to decimal Aggregate

code

Aggregate data via restful web service

I've seen this question asked a couple of times but last answered in 2017. Is there now a way to aggregate (e.g. sum) data via the restful web service? E.g. '...$groupby=category&$select=category,sumValue&$format=json'

REST API API Denodo Rest API Aggregate

code

MAX function for int field - filter for the result?

is there an easy way to set a filter to only keep the max value for a field based on two other columns? is greating a group by view with the max first and joining that to the baseview the only way to accomplish this? There are two fields that make th...

max function Aggregate Group By

code

Aggregate Awareness

Not sure if this question belongs in this section, but I would like to know how Denodo handles aggregate awareness. Does Denodo have the ability to be configured logically to pull from a single fact table, but physically have multiple tables at differe...

Related to: Data Virtualization and ETL

Aggregate query re-write

code

Restful API: Aggregation function with $grouby not working

I am trying to consume Rest API from denodo and finding some issues. View has multiple fields like userid, username, managerid, amount. When I am calling service like this /servicepath/view/viewname?managerid=xxxx&$select=userid,username,managerid...

REST API Aggregate

code

Aggregate operation on Rest web service

Hi, Does Denodo allow passing aggregates operations over an API? I have a REST API and the user needs to select only 3 columns from that API, group by 2 columns and calculate aggregate(sum operation) over the third column. I am able to select three co...

REST API Aggregate

code

IGNORE NULLS

Denodo 6.0, latest update as of 4/10/2017: Are we able to specify how NULLs are treated in aggregate and windowing functions? I wasn't able to find any information about specifying the handling of NULLs in aggregrate and windowing functions. In parti...

windowing_function Aggregate

code

GROUP BY and String Aggregate functions

I've made a View in Denodo VDP which is a UNION of two other "SELECT" views. Now I want to pivot some of the data in this new view; I use following query; ELECT primitivumnummer AS primitivumnummer, CASE WHEN ( hasname = 'txtNap' ) T...

Aggregate

code

View Parameters and Aggregation

I am fairly new to Denodo and I have read through the Advanced VQL and VDP Administration Guide but I am not able to resolve the following issue: Sample Base View For the sake of this issue, let's consider a base with student, months and rank. ...

parameter derived view Aggregate

code

How to stop Aggregate view from building sub query?

Does anyone recognize this pattern in Denodo? And preferably a way to prevent it? Base View (or any view) is selected by a Derived View which is aggregating data. And a filter is given to the Aggregate on one of the columns. Denodo is creating a la...

Aggregate