The Ultimate Guide to High Availability with MariaDB

GLENGTH

Sintassi

GLength(ls)

Spiegazione

Restituisce la lunghezza del valore LineString ls come numero a doppia precisione.

Esempi

MariaDB [(none)]> SET @ls = 'LineString(1 1,2 2,3 3)';
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> SELECT GLength(GeomFromText(@ls));
+----------------------------+
| GLength(GeomFromText(@ls)) |
+----------------------------+
|           2.82842712474619 |
+----------------------------+
1 row in set (0.00 sec)

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