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Python tutorials

Zip and Unzip files in Python

How to zip and unzip files using Python scripts and modules? If you’re looking for an easy and efficient way to manage your files in Python, then you’ve come to the right place. In this tutorial, we’re going to show you how to zip and unzip files in Python. Whether you’re working with large files or need to compress your data, we’ve got you

Python tutorials

Manage files in Python at file system level

How to manage files in Python like the create, delete, rename, or move operations? Python programming is a versatile language that can be used for a wide range of tasks. File management is the process of organizing, storing, and manipulating files on a computer or any remote file system. Using Python methods, you can easily automate repetitive file management tasks, such as creating, renaming,

SQL Server errors

SQL Server error login timeout expired with code 0x80004005

The SQL Server error code 0x80004005 login timeout expired is a common error that occurs when trying to connect to a SQL Server instance. This error is usually caused by a problem with the connection settings or a problem with the SQL Server instance itself. There are several reasons why this error may occur. 1. Incorrect SQL Server connection string One of the most

Python tutorials

Work with SQL Server using Python and pyodbc

How to connect to SQL Server with a Python script and the pyodbc library to create a table, select, update and delete data? Welcome to this tutorial on how to work with SQL Server databases using Python and pyodbc! In this course, you will learn how to use Python to interact with a SQL Server database. Whether you’re a beginner or an advanced user,

Python tutorials

Manage text files in Python using read and write methods

Python tutorial on how to manage text files using the open, read, readline, write, writelines, seek and close methods with scripts examples. This tutorial on how to manage text files in Python provide some information and code examples on working with files using Python scripts. Text files are a fundamental part of computer science and are used to store plain text data. They are

T-SQL Tutorials

T-SQL

Split string with delimiter into one column with SQL Server

How to split a string with delimiter with XML or STRING_SPLIT functions with SQL Server ? Split a string with delimiter, like comma or semicolon, into one column using SQL Server. With a T-SQL query, it is possible to cut a string compounded of text, delimited by commas, semicolons, tabulations, dash, underscore, or even dots. It can basically be any special character that defines

T-SQL

Manage SQL Server user defined functions

How to manage SQL Server user defined functions ? SQL Server user-defined functions are very useful when starting T-SQL development. You need to use them very often so you have to learn the right syntaxes and avoid errors. At the beginning it can be tricky and frustrating because it’s binary, it work or don’t work, programming T-SQL functions is an exact science. There is

T-SQL

SQL Server partitioning

SQL Server table partitioning allows to physically split the data of one table on the disk. Partitioning means data division that allows to directly access one unique partition instead of all the data from the table. First, why all large tables should have partitions? When accessing hundreds of million lines, it becomes very tricky to get a large bunch of data in seconds. Partitions

T-SQL

Script to create a view in SQL Server

To add a new view in a database, use this script written in T-SQL to create a view in SQL Server. A SQL view allows you to display specific columns of an existing table. Think of a view as a virtual table defined by a SQL query selection. It is a set of columns and rows in a table. SQL Server developers create and

T-SQL

Call a SQL Server CTE multiple times and reuse the data

How to run multiple SELECT queries on the same SQL Server CTE? Is it possible to execute several selection queries on a CTE, i.e. to call a SQL Server CTE multiple times in the same stored procedure for example? First of all, a CTE (Common Table Expression) allows you to reuse the result of a selection query. It is a temporary dataset, available only

T-SQL

Alter View with SQL Server

How to alter a SQL Server view with a T-SQL script? This code example allows you to modify an existing view. All you must do is use the common ALTER VIEW command. For example, to delete a column from the existing view or to add a column calculated from other columns in the source table. Modify a SQL Server view with an Alter View

SSIS Tutorials

SSIS

How to install SSIS in Visual Studio 2019 ?

How to install the SQL Server Integration Services, i.e., SSIS projects, in Visual Studio 2019? This is a Microsoft tutorial about installing SSIS in Visual Studio 2019. Of course, we assume that Visual Studio 2019 is already installed on your computer, which is using for example the Windows 10 operating system. With Visual Studio 2017, SSIS, SSAS and SSRS projects were available with the

SSIS

Import a CSV file into SQL Server with SSIS

Step by step tutorial to import a csv flat file into a SQL Server table with SSIS. It is possible to import a CSV file into a database with the SQL Server BI suite and SSIS in particular. Often, data integration projects require to load data from flat files or external databases. Files structures are either CSV, TXT, RAW files or other less common

SSIS

SSIS Merge JOIN using multiple tables

Tutorial to use the SSIS Merge Join transformation with two SQL Server tables into one target table. Use the Merge Join with the SSIS component allows you to perform a join and merge two or more data sources based on a common key. In other words, the SSIS Merge Join component allows you to merge different heterogeneous or non-heterogeneous sources into one, such as

SSIS

SSIS connection string to load Excel files

How to build an SSIS connection string to connect to Excel files and load data into a database? To connect, read and load data from Excel files with SSIS, it is necessary to build an OLEDB connection string. There are several ways to do this, a connection with the Excel Connection component of SSIS, using an ADO driver, or using an OLEDB connection. Syntax

SSIS

Import multiple CSV text files into a SQL table with SSIS

Import multiple csv text files into a SQL Server table with an SSIS dynamic loop. This tutorial explains how to import multiple CSV text files into a SQL table with a single package that uses a dynamic loop to detect the files. To start with, all text files (.txt, .csv, etc…) must be in the same folder. This automatic integration uses dynamic variables and

SSIS

Import an Excel file into a SQL table with SSIS

Import an Excel file into a SQL Server table with an SSIS package. Step by step tutorial to import data from an Excel file (xslx) into a SQL Server table with an SSIS package. Here, the target is a SQL Server database. From Visual Studio, use the native Excel component available in the SSIS data stream source connections. Load Excel files into SQL Server

Python tutorials

Python tutorials

Work with Python dates and time using the datetime module

If you work with dates and time in Python, it can be a bit tricky. But with the right tools, syntaxes and best practices, it becomes much more easy. Dates and times are an essential part of many applications, and working with them in Python can be challenging. However, with the right tools, it can be quite easy. In this blog post, we will

Python tutorials

Manage text files in Python using read and write methods

Python tutorial on how to manage text files using the open, read, readline, write, writelines, seek and close methods with scripts examples. This tutorial on how to manage text files in Python provide some information and code examples on working with files using Python scripts. Text files are a fundamental part of computer science and are used to store plain text data. They are

Python tutorials

Work with SQL Server using Python and pyodbc

How to connect to SQL Server with a Python script and the pyodbc library to create a table, select, update and delete data? Welcome to this tutorial on how to work with SQL Server databases using Python and pyodbc! In this course, you will learn how to use Python to interact with a SQL Server database. Whether you’re a beginner or an advanced user,

Python tutorials

Manage files in Python at file system level

How to manage files in Python like the create, delete, rename, or move operations? Python programming is a versatile language that can be used for a wide range of tasks. File management is the process of organizing, storing, and manipulating files on a computer or any remote file system. Using Python methods, you can easily automate repetitive file management tasks, such as creating, renaming,

Python tutorials

Introduction to Python programming language

Introduction to the Python programming language with fundamental concepts. This is an introduction to the Python language, which is a high-level interpreted programming language. It is widely used for web development, data analysis, artificial intelligence, and scientific computing. It was created by Guido van Rossum in the late 1980s and has since become one of the most popular programming languages in the world. Its

Python tutorials

Zip and Unzip files in Python

How to zip and unzip files using Python scripts and modules? If you’re looking for an easy and efficient way to manage your files in Python, then you’ve come to the right place. In this tutorial, we’re going to show you how to zip and unzip files in Python. Whether you’re working with large files or need to compress your data, we’ve got you

From all categories

SSIS

How to install SSIS in Visual Studio 2019 ?

How to install the SQL Server Integration Services, i.e., SSIS projects, in Visual Studio 2019? This is a Microsoft tutorial about installing SSIS in Visual Studio 2019. Of course, we assume that Visual Studio 2019 is already installed on your computer, which is using for example the Windows 10 operating system. With Visual Studio 2017, SSIS, SSAS and SSRS projects were available with the

Powershell

Copy files recursively in PowerShell including subfolders

This computer tutorial shows how to copy files and folders recursively in PowerShell, using the Windows Copy-Item command. The Copy-Item command allows you to copy a large number of files and folders recursively, in a single command. PowerShell is a shell used to execute commands written in the Windows PowerShell scripting language. The user can run scripts on Windows servers or clients, which are

T-SQL

Split string with delimiter into one column with SQL Server

How to split a string with delimiter with XML or STRING_SPLIT functions with SQL Server ? Split a string with delimiter, like comma or semicolon, into one column using SQL Server. With a T-SQL query, it is possible to cut a string compounded of text, delimited by commas, semicolons, tabulations, dash, underscore, or even dots. It can basically be any special character that defines

IT Concepts

SaaS or Software as a Service

Definition of the concept of SaaS or Software as a Service. Software as a Service (SaaS) is a type of software that is hosted on the cloud and can be accessed through the internet. It is also known as “software as a service” in French. One of the advantages of using SaaS for business owners is that they do not need to purchase or

IT Concepts

DBMS or Database Management System

A database management system (DBMS) is a set of hardware and software. It is a set of means that allows one or more computers or servers to store, organize and retrieve data. Firstly, a DBMS performs data storage but also manages their processing, security and integrity. The DBMS stores the information in tables where each row represents an element or object. And each column

IT Concepts

Cryptocurrency Mining definition and concepts

Definition of the Cryptocurrency mining used to calculate and validate transactions on the blockchain. What is the Cryptocurrency Mining ? It is the process of verifying transactions on a blockchain and adding them to the public ledger in exchange for a reward in the form of a cryptocurrency. It is also known as Crypto Mining or just Mining. The first miner to solve a

MS-DOS

Find my IP address with cmd

To access information on the Internet, a Windows 10 PC needs a unique address that can be used to find the desired content. This address is called the Internet Protocol Address (IP). To find my IP address on Windows 10 in CMD, there are mainly two methods, the first with the MS-DOS command prompt and the second with the graphical interface from the Windows

IT Concepts

OLTP and database transactions

Definition of OLTP, that stands for On Line Transactional Processing and database transactions. The abbreviation OLTP refers to all databases designed to manage data processing in a transactional and reliable manner. This is for general operational management purposes. Examples include accounting data, supermarket sales data such as receipts and bank transactions. Definition of transactional databases or OLTP: On Line Transactional Processing First of all,

T-SQL

SQL Server partitioning

SQL Server table partitioning allows to physically split the data of one table on the disk. Partitioning means data division that allows to directly access one unique partition instead of all the data from the table. First, why all large tables should have partitions? When accessing hundreds of million lines, it becomes very tricky to get a large bunch of data in seconds. Partitions

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