Best way to get high value of partition from oracle database? Answer “Best” is subjective but you can retrieve the high values by quering the data dictionary:
Tag: partition
Presto lag dates, group/partitioned by id
Say that I want to find every time that a client updated their budget. Here’s what my data looks like And the code I’ve run. What I’m expecting returned will be Hence there are NULL values for dt_2 in the first entry of each client_id. I’m not sure what code will accomplish this effect…
How can multiple unique in partition tabale?
I have a SQL table like below. I have a table. I need to unique order_no column with user_id column. there is no any problem. But I have to unique data_time column because of I use partition. but date_time column has to be separated with user_id and order_no. By the way I don’t want like this unique (us…
SQL find the 2 highest score for each country
I have two tables: maps_query and map_time like below: The question is to find the 2 highest score for each country. Desired output is like below: I was trying to use row_number() over but don’t know how to complete the query. Answer This can be achieved by rank() instead of row_number(). A good referen…
How to create partitioned table from other tables in Amazon Athena?
I am looking to create a table from an existing table in Amazon Athena. The existing table is partitioned on partition_0, partition_1, and partition_2 (all strings) and I would like this partition to carry over. Here is my code: Trying to run this gives me an error at the FROM line, saying “mismatched i…
SQL: Get row number which increases every time a value changes
I have the following table in Vertica: The table is ordered by column_1 and column_3. I would like to add a row number, which increases every time when column_1 or column_3 change their value. It would look something like this: I tried using partition over but I can’t find the right syntax. Answer Verti…
How to combine data from different variables together in SQL?
Let’s say I have data like this: All I want to do is collect the most recent non-null value from each column and condense them into a table with each row being an entry. Final result: Here’s what I have but it’s not complete: Answer Related: Equivalent for Keep in Snowflake: It could be achi…
How to use SQL find first matching result from one table in another table?
Suppose I had two tables: What I want to do is write a query that will find the first sale for each customer. I am not sure exactly how to do it. I feel like this is group by problem, but the answer is not coming to me. EDIT: I feel like my first data table did not fully explain
Creating unique row IDs in SQL using partition
I’m hoping that someone can either tell me where my syntax is wrong or let me know if there’s a better way to achieve my goal. I have taken a large dataset and applied a number of identifying fields …
How to add Conditions on SQL Percentile Window function?
I want to do a special query to evaluate team members. Each member will have a score, and those with score that is greater than 80th percentile of that team’s score will get a bonus. However, I want …