just as print or :nim:dump (if in mysql)
e.g. SELECT 1+1; // output 2
SELECT expr
FROM tab[[AS ] alias] [tabop ..] | (SELECT …) [AS ]ALIAS[(colName, …)]
WHERE → rows
GROUP BY column[, …]
HAVING → groups (take action after GROUP BY)
[SETOP
SELECT …
]
ORDER BY !can only used for the most outside SELECT (cannot for the nested) // following is non-std, mysql, sqlite supported LIMIT n OFFSET offset