If the date, item, and category are the same in the table, I’d like to treat it as the same row and return n rows out of them(ex: if n is 3, then limit 0, 3). expected results (if n is 3) The problem is that I have to bring the values of each group as well. If I have
Tag: aggregation
Multiple aggregate calculations using Group by
I have a dataset, df1, where I would like to: Take the average of the TotalB column based upon grouping the TotalB column. I would then like to take this new column and subtract the free value to …
How to merge more than two select queries to single result set in oracle
I need to merge the result set of four queries into single result output. Example: I need the output in the below format Answer One option would be applying Conditional Aggregation during joining of the tables :
Is it possible to improve the performance of this subquery?
For my application I have a topic table and a vote table. The vote options are -1, 0, and 1. I’m trying to find the amount of times each topic was voted -1 and 1. So to find out, I am doing many …
how to compute percentage in mysql/sql when 2 group by conditions are present
id title count organizer 1 music 4 2 2 sports 6 2 3 music 2 3 I have a derived table with the above structure. I need to compute the percentage of the number of events of each …
How to calculate running total (month to date) in SQL Server 2008
I’m trying to calculate a month-to-date total using SQL Server 2008. I’m trying to generate a month-to-date count at the level of activities and representatives. Here are the results I want to generate: From the following tables: ACTIVITIES_FACT table LU_TIME table I’m not sure how to do this: I keep running into problems with multiple-counting or aggregations not being allowed