MySQL 8.0 Keywords and Reserved Words • DATAFILE • DATE • DATETIME • DAY • DAY_HOUR  (R) • DAY_MICROSECOND  (R) • DAY_MINUTE  (R) • DAY_SECOND  (R) • DEALLOCATE • DEC  (R) • DECIMAL  (R) • DECLARE  (R) • DEFAULT  (R) • DEFAULT_AUTH • DEFINER • DEFINITION ; added in 8.0.4 (nonreserved) • DELAYED  (R) • DELAY_KEY_WRITE • DELETE  (R) • DENSE_RANK  (R); added in 8.0.2 (reserved) • DESC  (R) • DESCRIBE  (R) • DESCRIPTION ; added in 8.0.4 (nonreserved) • DES_KEY_FILE ; removed in 8.0.3 • DETERMINISTIC  (R) • DIAGNOSTICS • DIRECTORY • DISABLE • DISCARD • DISK 1885