Module org.jooq
Package org.jooq.impl

Interface QOM.CovarSamp

All Superinterfaces:
AggregateFilterStep<BigDecimal>, AggregateFunction<BigDecimal>, Field<BigDecimal>, FieldOrConstraint, FieldOrRow, FieldOrRowOrSelect, GroupField, Named, OrderField<BigDecimal>, QueryPart, SelectField<BigDecimal>, SelectFieldOrAsterisk, Serializable, TableElement, Typed<BigDecimal>, WindowBeforeOverStep<BigDecimal>, WindowOverStep<BigDecimal>
Enclosing class:
QOM

public static interface QOM.CovarSamp extends AggregateFunction<BigDecimal>
The COVAR SAMP function.

Calculate the sample covariance. This standard SQL function may be supported natively, or emulated using DSL.sum(Field) and DSL.count(Field). If an emulation is applied, beware of the risk of "Catastrophic cancellation" in case the calculations are performed using floating point arithmetic.