Tag[partition-by] Recent Newest Questions

How to remove the 0s in the id_sum column by a sequence from 1 to n in pyspark dataframe

I have the following pyspark dataframe df_model: id_client id_sku 1111 4444 1111 ...

from array to range by step in SQL Server

The array of numbers should be transferred to ranges to compress the number of records. This is an example: Current: L2PARAM_ID ...

An efficient way to backward fill group values by type

I have a logs table with id, name, type, and date columns. And I want to create a new column which represents next id value from the 2nd type. Query m ...

Avoid subqueries when grouping over a part of a string

I have a list of products and components, that have different prices. Here is a simplified example. ID Hierarchy Price ...

Sum over Partition By Only when Value is Greater than 0

I only want to sum the applied amount when a ledger amount in another table is positive Example Table A Table B Table C The current code is ...

Use the same column in both group by and partition by in BigQuery

I have a table TAB with 5 columns, col1: string ('AAA', 'BBB', ...) col2: string (null, 'XYZ', ...) col3: timestamp ('2020-01-01 00:00:00', ...) col4: ...

Identifiy all rows that make up a partion

I am using SQL Server 2019 and I need to process the latest row from a group of rows. However, I need to mark the other rows in that group so I know t ...

Performing complex data partitioning when using PARTITION BY in SQL Server

I am not a SQL expert, not even close. In the below example am using the PARTITION BY clause in a PERCENT_RANK() operation (Microsoft SQL Server hoste ...

How to use COUNT () OVER(Partition) along with where clause

I want to get the count of claims for each NPI with filter condition. The sample query which I've is: Please help me understand what is the correct ...

Google BigQuery Resources exceeded during query execution. How to split large window frames with partition in SQL

I'm running out of memory with my query on Google BigQuery. I have to calculate multiple window functions like running sums over multiple different ti ...

Partition by query behaves differently with slightly different input data

I'll explain the point of the bellow query. Select the foo row with the highest count of bar. in the case of matching rows with the same count, select ...

Group by after a partition by in MS SQL Server

I am working on some car accident data and am stuck on how to get the data in the form I want. select sex_of_driver, accident_severity, c ...

SQL/BigQuery: return only the last occurence

I have a table about conversations and different actions for each of them. conv_id action_id action date ...

SQL/BigQuery: case when statement over partition by

I have a table about conversations. There are many conversation elements for unique conversation IDs conv_id element_id a ...

Modifying records in one column of a table conditioning on the date ranges in the other table

I am currently trying to combine Left join with window function (e.g. partition by class_id order by date_to desc) to solve the following problem in S ...

Partition By Scan To Seek

I have a T1 table. For every value in column C1/C2, column C3 starts at 1. C1 C2 MAX_C3 -------------- 1 1 46 1 2 540 1 3 6 1 4 ...

Scalar subquery producing more than 1 record with partition - SQL

I have data with two rows as follows: I want to retrieve the max item_no for each group_id. I'm using this query: I need only one record because ...

combine average function and row number over partition in one query MySQL

This is the database: id_user nama id_sikap kelancaran tahsin 10000000 Budi B ...

Update table with row_counter values

I feel like this should be easy but I'm having the hardest time. I'm using SQL server. I'm trying to get the output from the following query to be use ...

Find first event occurring after given event

I am working with a table consisting of a number of web sessions with various events and event id:s. To simplify my question, let's say that I have 4 ...