LEFT
Sintassi
LEFT(str, len)
Spiegazione
Restituisce len caratteri dalla sinistra della stringa str, oppure NULL se uno qualsiasi degli argomenti è NULL.
Esempi
MariaDB [test]> SELECT LEFT('MariaDB', 5);
+--------------------+
| LEFT('MariaDB', 5) |
+--------------------+
| Maria |
+--------------------+
1 row in set (0.00 sec)
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