ActualResultSize tests the error and returns true only if the error is a wrong-size error, in which case it also returns the actual result size.

ChainErrorIfExecNotSatisfiedBy matches a requirement against the actual result size for an exec query.

ChainErrorIfQueryNotSatisfiedBy matches a requirement against the actual result size for a select query.

ErrorIfExecNotSatisfiedBy matches a requirement against the actual result size for an exec query.

ErrorIfQueryNotSatisfiedBy matches a requirement against the actual result size for a select query.

ErrWrongSize returns an error based on the actual size received and a message describing the unsatisfied requirement.

IsNotFound tests the error and returns true only if the error is a wrong-size error and the actual size less than one.

IsNotUnique tests the error and returns true only if the error is a wrong-size error and the actual size was more than one.

All is a requirement that is updated to exactly match some number that is only known at call time.

AtLeastOne is a requirement that is met by the actual results being at least one, i.e.

NoMoreThanOne is a requirement that is met by the actual results being no more than one.

Requirement set an expectation on the outcome of a query.

Sizer is any type that provides the result set size.

AtLeast is a requirement that is met by the actual results being at least a specified value.

Exactly is a requirement that is met by a number matching exactly.

NoMoreThan is a requirement that is met by the actual results being no more than a specified value.

Quantifier is a requirement that is met by imprecise zero, singular or plural results.