Tag: Group
MySQL select row with max value for each group
While working with databases, we get many situations where we need to get records with max value for each group of grouped SQL results. While there are many solutions to it, we will be discussing a few of them. Table of Contents GROUP BY : MySQL select row with max value JOIN : MySQL select …
MySQL select first row in each group
This article will be discussing how to get the first row from each group of a table/query. We will be going through three different ways to achieve the same output. Table of Contents:- SELECT FIRST ROW IN EACH GROUP USING MIN() FUNCTION SELECT FIRST ROW IN EACH GROUP USING JOIN SELECT FIRST ROW IN EACH …
Get statistics for each group using Pandas GroupBy
In most of the data analysis processes, we need to slice and dice in multiple ways to build data understanding and generate insights. Here, the groupby() function comes in handy to slice the data and generate statistical summary such as mean, count, etc. for other columns. In this article, we will try to cover the …
Count unique values per group in Pandas
In this article, we will discuss how to count unique values per group in a Pandas DataFrame. We are going to cover multiple approaches to achieve this as listed below. Table of Contents Count unique values per group Using nunique() method Count unique values per group using the aggregate function Count unique values per group …
Mini Importation Business in Nigeria WhatsApp Group 2023
Mini importation is a profitable business in Nigeria for making money online from selling all kinds of retail products. The mini importation business involves buying items like jewellery, electronic gadgets, hair products, etc., from e-commerce websites such as Aliexpress, Alibaba and Amazon. Nigeria is a consumer country, meaning people like to buy any item that …
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An overview of the Nigerian Exchange Group
The Nigerian Stock Exchange Group Plc, via its affiliates, functions as a stock exchange for the entire Nigerian nation. Only publicly quoted businesses securities are available for trading by regular investors and traders on the Nigerian Stock Exchange (NGX). The Nigerian Stock Exchange carries out business activities through its three divisions: Capital Market & Post …