noun
property value; attribute value
Technical term used in computing, databases, and data modeling to refer to the value assigned to a specific property or attribute of an object or entity.
このオブジェクトの属性値を取得してください。
Please get the attribute value of this object.
データベースで属性値がNULLの場合、検索から除外される。
In the database, if an attribute value is NULL, it is excluded from the search.
値 is a general term for value, but 属性値 specifically means a value in the context of an attribute or property.
Compound of 属性 (attribute, property) and 値 (value). A straightforward technical term with no obscure historical derivation.