This article explains the xp_cmdshell and sp_xp_cmdshell_proxy_account system stored procedures in SQL Server and how developers can use them to execute Windows commands.
Read more »Hadi Fadlallah
Hadi is an SQL Server professional with more than 10 years of experience. His main expertise is in data integration. He's one of the top ETL and SQL Server Integration Services contributors at Stackoverflow.com . Also, he published several article series about Biml, SSIS features, Search engines, Hadoop, and many other technologies.
Besides working with SQL Server, he worked with different data technologies such as NoSQL databases, Hadoop, Apache Spark. He is a MongoDB, Neo4j, and ArangoDB certified professional.
On the academic level, Hadi holds two master's degrees in computer science and business computing. Currently, he is a Ph.D. candidate in data science focusing on Big Data quality assessment techniques.
Hadi really enjoys learning new things everyday and sharing his knowledge. You can reach him on his personal website.
View all posts by Hadi Fadlallah
Besides working with SQL Server, he worked with different data technologies such as NoSQL databases, Hadoop, Apache Spark. He is a MongoDB, Neo4j, and ArangoDB certified professional.
On the academic level, Hadi holds two master's degrees in computer science and business computing. Currently, he is a Ph.D. candidate in data science focusing on Big Data quality assessment techniques.
Hadi really enjoys learning new things everyday and sharing his knowledge. You can reach him on his personal website.
View all posts by Hadi Fadlallah
Latest posts by Hadi Fadlallah (see all)
- xp_cmdshell and sp_xp_cmdshell_proxy_account stored procedures in SQL Server - June 22, 2022
- An overview of DIFFERENCE and SOUNDEX SQL functions - January 18, 2022
- Getting started with SQL Server CLR functions - January 11, 2022
An overview of DIFFERENCE and SOUNDEX SQL functions
January 18, 2022This article gives an overview of DIFFERENCE and SOUNDEX SQL Server built-in system functions. It explains how to use those functions and how do they work.
Read more »
Getting started with SQL Server CLR functions
January 11, 2022This article will explain how to create a SQL Server CLR function stored in a C# class library without creating a SQL Server database project. We will first briefly explain the concept of .NET common language runtime (CLR) and then build a C# class library using the .NET framework. Then, we will use the C# library to create user-defined CLR functions in SQL Server.
Read more »
SSIS term extraction vs. term lookup
November 25, 2021This article explains both the SSIS term extraction and term lookup components. Besides, it illustrates the use cases of each one of them.
Read more »
SSIS Script task vs. Script Component
November 19, 2021This article explains the SSIS Script task and Script component, the scripting tools available in the SQL Server Integration Services (SSIS).
Read more »
SSIS XML Source vs. XML task
November 3, 2021This article explains the SSIS XML Source and the SSIS XML task, which are the XML-related components in the SQL Server Integration Services.
Read more »
Data Access Modes in SSIS OLE DB Destination: SQL Command vs. Table or View
October 5, 2021This article compares the SSIS OLE DB Destination SQL command with the “Table or View” data access mode. In a previously published article, SSIS OLE DB Destination vs SQL Server Destination, in this series, we explained the OLE DB Destination component in SSIS and illustrated how it differs from the SQL Server Destination component. So, in this article, we will focus on the OLE DB Destination data access modes, not the component itself.
Read more »
SSIS Merge Join vs. Merge Transformation
September 28, 2021SSIS Merge Join and Merge transformations are two similar components used to combine two input data sources into one output. This article explains both transformations and illustrates when and how to use each one of them.
Read more »
SSIS Pivot transformation vs. Unpivot transformation
September 8, 2021This article explains the SSIS pivot transformation and how it differs from the unpivot transformation.
Read more »
Popular free SQL online compilers
August 9, 2021This article will mention some of the most popular free SQL online compilers that help developers debug and test their SQL code without installing an SQL instance locally or buying one on the cloud.
Read more »
How to write subqueries in SQL
August 3, 2021This article briefly explains how to write a subquery in SQL by providing examples.
Read more »
SSIS Lookup transformation vs. Fuzzy Lookup transformation
July 28, 2021This article will explain how to use the SSIS lookup transformation and how it differs from the fuzzy lookup. This is a continuation of the SSIS features face-to-face series that we published previously on this website.
Read more »
An overview of the SQL Server ISNUMERIC function
July 2, 2021This article gives an overview of the SQL Server ISNUMERIC built-in system function. It explains how to use this function, illustrates its limitations, and provides some alternatives.
Read more »
Migrating SQL Server graph databases to ArangoDB
June 10, 2021This article will explain ArangoDB, how to install it on Windows, and how to migrate a SQL Server graph database to this NoSQL database management system.
Read more »
An overview of the VS_NEEDSNEWMETADATA SSIS exception
May 13, 2021In this article, we will briefly explain the VS_NEEDSNEWMETADATA SSIS exception, one of the most popular exceptions that an ETL developer may face while using SSIS. Then, we will run an experiment that reproduces this error. Then, we will show how we can fix it.
Read more »
Different approaches to execute Python in SQL Server
May 10, 2021This article briefly explains how to execute scripts written in Python in SQL Server and how Machine Learning services facilitate this process.
Read more »
Top free T-SQL training videos
April 28, 2021This article mentions some of the top free T-SQL training videos available on the internet.
Read more »
Working with parameters in the sp_executesql stored procedure
April 16, 2021This article explains how to use the sp_executesql system stored procedure to run static and dynamic SQL queries and how to pass input and output parameters while using it.
Read more »
Export indexes and constraints from SQL Server graph databases to Neo4j
April 6, 2021In our previously published article in this series, we explained how to migrate SQL Server graph tables into Neo4j and why migration could be beneficial. We only mentioned how to migrate node and edge tables, and we did not mention indexes and constraints. This article is an extension of the previous one, where we will explain how to export the supported indexes and constraints from SQL Server to the Neo4j graph database. In addition, all codes are added to the project we already published on GitHub.
Read more »
Building SSAS tabular models using Biml
March 30, 2021This article will explain how to use the Business Intelligence Markup Language to create an SSAS tabular model.
Read more »
Building SSAS OLAP cubes using Biml
March 16, 2021In this article, we will explain how to use the Business Intelligence Markup Language (Biml) to build SSAS OLAP cubes, noting that this article is the ninth article in the Learn Biml series.
Read more »
Migrating SQL Server graph databases to Neo4j
March 9, 2021This article provides a step-by-step guide for migrating SQL Server graph databases to Neo4j using C#.
Read more »
Getting started with the Neo4j graph database
February 5, 2021In this article, we will talk briefly about graph databases and what Neo4j is. Then we will give a step-by-step guide on how to install and get started with Neo4j on Windows operating system.
Read more »
Import data from MongoDB to SQL Server using SSIS
December 25, 2020In this article, we will explain how to install MongoDB on the Windows operating system, how to install and configure the ODBC driver and connector that allows us to import data from MongoDB to SQL Server using SSIS.
Read more »
Building databases using Biml
October 14, 2020In the previously published articles in this series, we talked about the Business Intelligence Markup Language (BIML) and how to use the technology to build and manage SQL Server Integration Services (SSIS) packages. Besides managing SSIS packages, we can also manage SSAS models and build databases using BIML.
Read more »