Emil Drkusic
The data model we'll use to explain user-defined functions

Learn SQL: User-Defined Functions

February 25, 2020 by

You can create several user-defined objects in a database. One of these is definitely user-defined functions. When used as intended, they are a very powerful tool in databases. In today’s article, we’ll see how to create, change and remove them from the database, as well as how to use them. So, let’s dive into the matter.

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Rajendra Gupta
Sample notebook

Learn Jupyter Notebooks for SQL Server

February 25, 2020 by

Introduction

The Jupyter notebook is a powerful and interactive tool that supports various programming languages such as Python, R, Julia. This open-source utility is popular among data scientists and engineers. This notebook integrates both code and text in a document that allows you to execute code, view visualization, solve mathematical equations.

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Sifiso Ndlovu
Error at OLE DB Destination component during data migration using SSIS's Data Flow Task

Dynamic column mapping in SSIS: SqlBulkCopy class vs Data Flow

February 14, 2020 by

The Data Flow Task is an essential component in SQL Server Integration Services (SSIS) as it provides SSIS ETL developers with an ability to conveniently extract data from various data sources; perform basic, fuzzy to advance data transformations; and migrate data into all kinds of data repository systems. Yet, with all its popularity and convenience, there are instances whereby the Data Flow Task is simply not good enough and recently, I got to experience such inefficiencies. To demonstrate some of the limitations of SSIS’s Data Flow Task, I have put together a random list of Premier League’s leading goal scorers for the 2019-2020 season.

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