Tag: data
MTN True Talk vs MTN Beta Talk 2023 | Call Rate, Data, Bonuses & SMS
This post contains a comparison between MTN True Talk vs MTN Beta Talk. Do you want to change your tariff plan on MTN, but you’re confused about the one to go for between TruTalk and BetaTalk? Or, you’re already subscribed to either of TruTalk or BetaTalk and considering if one is better than the other. …
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Learn how to – Best Books To Learn PostgreSQL Database in 2023
Learn how to – Best Books To Learn PostgreSQL Database in 2023. As a developer, Database Administrator or Systems Engineer, having a background in databases is paramount in your career development. In that regard, PostgreSQL is one fantastic database that every aspiring person in the mentioned fields should consider taking a deep dive in. Let …
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C++11 Multithreading – Part 4: Data Sharing and Race Conditions
In multithreading environment data sharing between threads is very easy. But this easy sharing of data can cause problems in application. One such problem is Race Condition. What is a Race Condition? Race condition is a kind of a bug that occurs in multithreaded applications. Advertisements When two or more threads perform a set of …
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How to write data in a CSV file in C++
In this article we will discuss, how to create a class to write data to a CSV File. What is a CSV File ? A CSV file is a kind of flat file used to store the data. In this each row contains data separated by comma. For example, Advertisements 20,hi,99 3,4,5 a,b,c 3,4,1 Creating …
How to read data from a csv file in C++ ?
In this article we will discuss and create a class to read data from a CSV File. What is a CSV File ? A csv file is a kind of flat file used to store the data. In this each row contains data separated by comma. For example, Advertisements 20,hi,99 3,4,5 a,b,c 3,4,1 Creating a …
Pandas : Change data type of single or multiple columns of Dataframe in Python
In this article we will discuss how to change the data type of a single column or multiple columns of a Dataframe in Python. Change Data Type of a Single Column To change the data type of a single column in dataframe, we are going to use a function series.astype(). Let’s first discuss about this …
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How to get & check data types of Dataframe columns in Python Pandas
In this article we will discuss different ways to fetch the data type of single or multiple columns. Also see how to compare data types of columns and fetch column names based on data types. Use Dataframe.dtypes to get Data types of columns in Dataframe In Python’s pandas module Dataframe class provides an attribute to …
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Create an empty Numpy Array of given length or shape & data type in Python
In this article we will discuss different ways to create an empty 1D,2D or 3D Numpy array and of different data types like int or string etc. Python’s numpy module provides a function empty() to create new arrays, Advertisements numpy.empty(shape, dtype=float, order=’C’) It accepts shape and data type as arguments. Returns a new array of …
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MySQL increase VARCHAR size of column without breaking existing data
This article will see how to increase the size of a VARCHAR datatype column for a MySQL table. Also, we will ensure that we do not lose or break the column’s existing data. Table of Content Syntax ALTER statement MODIFY to increase column size ALTER statement CHANGE to increase column size Let us get started …
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MySQL: change column type to VARCHAR without losing data
This article will see how to convert the column type to VARCHAR without losing the data. Table of Contents: Change column type to VARCHAR without losing data : MODIFY clause Change column type to VARCHAR without losing data : CHANGE clause We will get started by creating a sample table student_enroll_data. Advertisements CREATE TABLE student_enroll_data …
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