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> The Update statement tells "set this column to this value". It's totally a declaration of intent.

"Set this column to this value" sure looks like an operation to me.

> It doesn't specify anything about how the update is going to happen behind the scenes

Neither does the expression y = f(x). But that expression is the canonical example of a function, not a declarative statement.

> Operation in the context of declarative vs non declarative

Is whatever you are defining it to be, I get that. But I don't think the author of the article is using words the same way you are.




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