IS NOT NULL
Sintassi
IS NOT NULL
Spiegazione
Verifica se un valore è diverso da NULL.
Esempi
MariaDB [(none)]> SELECT 1 IS NOT NULL, 0 IS NOT NULL, NULL IS NOT NULL; +---------------+---------------+------------------+ | 1 IS NOT NULL | 0 IS NOT NULL | NULL IS NOT NULL | +---------------+---------------+------------------+ | 1 | 1 | 0 | +---------------+---------------+------------------+ 1 row in set (0.00 sec) MariaDB [(none)]>
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