I have 1 table like the picture I want to count column number the output as follows I try but it not show column ID and name as I want. select id, name, number, count(number) from table_demo group by id, name, number My result Can’t help you with the SQL Server 2019 >Solution : Something… Read More Count advanced in SQL Server group by 1 column

There is a dataframe that contains several columns with the same name and I don’t know the exact number of columns with the same. I want to keep only one column on my dataframe and add the the values of the other to the last line. I don’t know the best way to proceed. Simple… Read More How to add columns with the same name into last line in order to have only one column pandas

I can’t figure out how to create pandas dataframe (multiple-columns) from list. Some lines contains character ">" at the beggining. I want them to be column headers. Number of lines after each header is not the same. My list: >header a b >header2 c d e f >header3 g h i Dataframe I want to… Read More Create multiple-columns pandas dataframe from list

I have been trying to create a website divided into 3 Columns of unequal length, being more specific two of 15% in the sides, and one of 70% in the centre. However I am not being able to manage that the 3 columns take 100% width of the space of my wesbite. Here’s my code:… Read More How to divide a website into three unequal length columns

I have a pandas dataframe and a function that returns a dictionary. I want to assign the result of the function to multiple columns. But the problem is, the function returns a dictionary that I want to save only the values to columns. I can do this by sending only the values from the function.… Read More How to assign multiple column in one go with dictionary values?

Following are the standard values for score and grades. Grade Grade1 Grade2 Grade3 Grade4 B1 A1 IA1 D1 ID1 B2 A2 IA2 D2 ID2 B3 A3 IA3 D3 ID3 B4 A4 IA4 D4 ID4 B5 A5 IA5 D5 ID5 Input :- Grade Grade1 Grade2 Grade3 Grade4 B5 A1 IA4 D3 ID2 Output:- Tiers Grade Grade1… Read More Convert dataframe to 5*5 grid of choice

Name Date A 1990-10-7 B 1997-11-20 and i want to add column age the convert the date to the age i try this data$age <- age_calc(as.Date(data$dob, "%Y/%m/%d"), units = "years") but i got this error Error in if (any(enddate < dob)) { : missing value where TRUE/FALSE needed >Solution : The error is in the… Read More add column age from column birthdate in R

I need to find all occurrences of duplicate records in a PySpark DataFrame. Following is the sample dataset: # Prepare Data data = [("A", "A", 1), \ ("A", "A", 2), \ ("A", "A", 3), \ ("A", "B", 4), \ ("A", "B", 5), \ ("A", "C", 6), \ ("A", "D", 7), \ ("A", "E", 8), \… Read More How to get all occurrences of duplicate records in a PySpark DataFrame based on specific columns?

I have a dataframe in R with lots of columns and lots of rows with numeric values. I have multiple colums with the same name (e.g. A, A, B, B, C, C…) that should be combined into a single colum with the maximum of the rows (A,B,C) So this A A B B C C… Read More How to take the row-wise maximum of columns with the same name

This might be related to pivoting, but I am not sure. Basically, what I want to achieve is the following binary transformation: +—————–+ | C1 | C2 | +——–|——–+ | A | xxx | | B | yyy | | A | yyy | | B | www | | B | xxx | |… Read More How to map one column to multiple binary columns in Spark?