Last week I was working on a Power BI custom data connector for a customer and I came across a problem that has been bothering me for a while. The “Invoke Custom Function” button is a very powerful ...

A user-defined function is a mechanism with which you can write your own extensions to SQL. The built-in functions supplied with DB2 are a useful set of functions, but they may not satisfy all of your ...

parser_tools is a DuckDB extension designed to provide SQL parsing capabilities within the database. It allows you to analyze SQL queries and extract structural information directly in SQL. This ...

Given a function invocation, the database manager must decide which of the possible functions with the same name is the "best" fit. This includes resolving functions from the built-in and user-defined ...

SQL Window functions are an advanced type of function in SQL. In this post, you will learn about what SQL window functions are and how they can be used or work. What are SQL window functions? SQL ...