POINTN
Sintassi
PointN(ls, N)
Spiegazione
Restituisce l'oggetto Point numero N nel valore LineString ls.
I punti sono numerati a partire da 1.
Esempi
MariaDB [(none)]> SET @ls = 'LineString(1 1,2 2,3 3)'; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> SELECT AsText(PointN(GeomFromText(@ls),2)); +-------------------------------------+ | AsText(PointN(GeomFromText(@ls),2)) | +-------------------------------------+ | POINT(2 2) | +-------------------------------------+ 1 row in set (0.00 sec)
Content reproduced on this site is the property of its respective owners,
and this content is not reviewed in advance by MariaDB. The views, information and opinions
expressed by this content do not necessarily represent those of MariaDB or any other party.
