> I am trying to get me head around the 'flag bit' in the sqltype
> field of the XSQLVAR structure?
>
> Can anyone enlighten me on it's function?

If (XSQLVAR->sqltype & 1) == 1, XSQLVAR->sqlind contains information
if value is NULL or not.

If field is declared NOT NULL, XSQLVAR->sqltype & 1 == 0. If XSQLVAR-

>sqltype & 1 == 1 && XSQLVAR->sqlind == 0, field is not NULL,

otherwise it is NULL.

Best regards,
Roman Rokytskyy