palmer ristevski <[EMAIL PROTECTED]>
wrote:
> Say one defines a column to be of text type,
> but you want only 'text'  to contain only  alphabetic characters,
> no numeric characters, how would one create this rule and enforce it
> in SQLite SQL or does one have to use triggers.

Perhaps something like this:

create table t(x check (ltrim(x, 'ABC...Zabc...z') = ''));

(with full alphabet in place of ellipsis, of course).

> Another question I have is, has proper referential integrity been
> finally established
> and things like full joins and other joins.

No. Still no foreign keys, and only left outer joins.

Igor Tandetnik 



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