4 Working effectively with database nulls

marcesher.com posted by gopher 1770 days ago  

This post covers how to marshall null values from a database into a Go struct type and how to save nulls back to the database. I’ll cover the standard library’s sql.NullString, NullInt64, NullFloat64, etc types — which I’ll refer to as sql.NullXYZ when indicating the collection of types and not a specific Null type — important methods on those types, telltale errors, and some helpers for working with values coming from form posts.

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