easy5 pts · first answer countsdata-modellingsql

Rejecting bad values

Quantities must never be negative, even if a bug in one of several apps tries to write one. What is the best place to enforce this?

A.Only in the front-end form validationB.A nightly job that deletes negative rowsC.A CHECK (quantity >= 0) constraint on the tableD.A comment on the column describing the rule

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