TRUE FALSE
Spiegazione
Le costanti TRUE e FALSE equivalgono a 1 e 0, rispettivamente. I nomi delle costanti possono essere scritti sia in maiuscolo sia in minuscolo.
Esempi
MariaDB [(none)]> SELECT TRUE, true, FALSE, false; +------+------+-------+-------+ | TRUE | TRUE | FALSE | FALSE | +------+------+-------+-------+ | 1 | 1 | 0 | 0 | +------+------+-------+-------+
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