An axiom schema is a formula in the language of an axiomatic system, in which one or more schematic variables appear.

An Axiom is a mathematical statement that is assumed to be true. There are five basic axioms of algebra. The axioms are the reflexive axiom, symmetric axiom, transitive axiom, additive axiom and multiplicative axiom.

An axiom system is a set of axioms or axiom schemata from which theorems can be derived.

A starflake schema is a combination of a star schema and a snowflake schema. Starflake schemas are snowflake schemas where only some of the dimension tables have been denormalized. hardkingofflirt@gmail.com

No, it is a meaningless sentence, not an axiom.