ConstAn integer of any size, as a bigint.
A flag: 1/0, S/N, Y/N, T/F, true/false (a CHAR(1) or NUMBER(1)).
A date: a DATE or TIMESTAMP, or text JS can parse.
An integer within JS's safe range (use bigint() past 2^53). '12' and 12 both work.
A number (a decimal NUMBER).
Text: a NUMBER as plain decimal text, a DATE as ISO 8601.
Column types. Oracle returns NUMBER as a JS number, or as text with
fetchAsString: ['number'](exact past 2^53); these accept both.