Good software habits apply to databases too. Trust in these little design tips to build a useful, rot-resistant database ...

Eliminate empty columns in datasets with Power Query. Explore automated, reusable solutions for efficient and adaptable data cleaning.

When a policyholder decides to increase the sum insured for his/her health policy and subsequently makes a claim for a pre-existing disease (PED), various factors come into play regarding claim ...

This guide describes how to reorder multiple columns in Power Query with Drag & Drop, without having to move each column individually.

What happens? When trying to add a new JSON column to an existing table with ALTER TABLE, the query fails with duckdb.duckdb.CatalogException: Catalog Error: Type with name "JSON" is not in the ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement.

Feature Type Adding new functionality to pandas Changing existing functionality in pandas Removing existing functionality in pandas Problem Description It would be great if the pd.to_sql function w ...

Microsoft Excel 2010 can convert a worksheet to a data table to help you quickly analyze your related data in formatted rows and columns. When you need to expand the table layout, apply the Home ...

This post adds one more useful detail: how to preserve the original data types of the columns in your query when using this technique with SQL Server-related sources. Consider the DimDate table in the ...

Merging tables At its simplest, joining two tables in Power Query requires each table to include a field that contains the value that will be used to join one table to the other. We'll start off with ...