OUTER_JOIN
class OUTER_JOIN<VENSTRE, HØYRE, RETUR>(kombinerer: (Periode, Segment<VENSTRE>?, Segment<HØYRE>?) -> Segment<RETUR>?) : JoinStyle<VENSTRE, HØYRE, RETUR>
Ene eller andre har verdi.
venstre høyre OUTER_JOIN
2020-01-01 +---+ +------------+
| x | | f(x, null) |
2020-01-02 | | +---+ +------------+
| | | 1 | | f(x, 1) |
2020-01-03 +---+ | | +------------+
| | | f(null, 1) |
2020-01-04 +---+ +------------+
2020-01-05 +---+ +------------+
| y | | f(y, null) |
2020-01-06 +---+ +------------+Content copied to clipboard