Mention specific applications you developed and which programming language it involved, ideally using SQL
Employers want to see just how knowledgeable you are with different programming languages, as the more knowledgeable you are, the more comfortable you will be in developing a variety of applications for all kinds of purposes. For example, take the bullet point "Developed C# applications add-ons for ERP systems to better accommodate user needs" in the person's most recent role. Technical hiring managers value all kinds of technical experience, so if you don't have pure SQL work experience, then you should also include other technical experience with other languages.