Brent Wood wrote:
> Lorenzo Thurman wrote:
>> I have three tables using date fields. I want to retrieve the oldest
>> date contained in the tables. Can someone show me an example of a
>> query that would do that?
> You could write a custom function doing the same sort of thing, or
> (perhaps more portable) use generic sqls & views like:
>
> create view min_dates as
> select min(date1) from table1as date_1
> union
> select min(date2) from table2 as date_1
> union select min(date3) from table3 as date_1;
>
> then either:
>
> select min(date_1) from min_dates;
>
>
> or
>
> create view min_date as
> select min(date_1) as min_date
> from min_dates;
>
> then just:
>
> select min_date from min_date;
>
>
>
> Cheers
>
> Brent Wood
>
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Thanks for the tip!
