Tag: Add
Python Set: add() vs update()
In this article we will discuss the main differences between add() and update() functions of Set in python. In python, set class provides two different functions to add or append elements in the set. Before going into the differences, first let’s have a basic overview about them, Advertisements set.add() Function: set.add(element) It accepts an element …
7 Ways to add all elements of list to set in python
In this article we will discuss 7 different ways to add all elements of a list to the set in python. Suppose we have a list and a set i.e. Advertisements # Set of numbers sample_set = {11, 12, 13, 14} # List of numbers list_of_num = [10, 11, 12, 13, 14, 15, 16] Now …
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Git : How to recursively add all files or folders to a repository?
In this article we will discuss how to recursively add all files, folders, and sub folders of the project to the staging area of git in a single command and then finally commit to the repository. Also, we will cover scenarios where we need to recursively add all files & sub folders of a specific …
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Pandas: Add two columns into a new column in Dataframe
In this article we will discuss different techniques to sum values of two columns in a dataframe and assign summed values as a new column. We will also cover the scenarios where columns contain NaN values. Suppose we have a Dataframe which contains employee name as an index and each column contains their monthly salaries, …
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Git: Add only modified / deleted files and ignore new files ( i.e. Untracked files ) using “git add -u”
In this article we will discuss how to add only modified & deleted files to the git and ignore all new files and folders. Sometimes we encounter a situation where we add, modify, and delete some files locally in the project. But we want to update the git index by adding only modified & deleted …
R: Create empty vectors and add new items to it
Empty vectors in R are the vectors of length zero. We often need to create empty vectors in a program so that elements can be added later as and when required. While there are several ways to do the same, we will be talking about few of them. In this article will learn how to …
Append/ Add an element to Numpy Array in Python (3 Ways)
In this article, we will discuss different ways to add / append single element in a numpy array by using append() or concatenate() or insert() function. Table of Contents Use append() to add an element to Numpy Array. Use concatenate() to add an element to Numpy Array. Use insert() to add an element to Numpy …
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MySQL- Add multiple columns after a specific column
This article will be looking into how to add multiple columns after the last or a specific column in MySQL. Table of Contents MySQL- how to add multiple columns after the last column MySQL -how to add multiple columns after a specific column MySQL -how to add multiple columns after different specific columns MySQL -how …
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MySQL ADD COLUMN IF NOT EXISTS
This article will discuss the script to add a column to a MySQL table only if it does not already exist. Let us get started by making the sample table using the create table script. CREATE TABLE IF NOT EXISTS sale_details ( id INT auto_increment, sale_person_name VARCHAR(255), no_products_sold INT, sales_department VARCHAR(255), primary key (id) ); …
MySQL ADD FOREIGN KEY
This article will discuss how to add foreign keys while creating a table and to existing tables. Table of Contents:- Add foreign key while creating a table in MySQL Add foreign key to an existing table in MySQL Add foreign key while creating a table in MySQL We will be creating a table named student_details and inserting some rows …