Re: SQL loval date/timestamp--(function in SQL to select a valuefrom a list)

[Anton Gombkötö <gombkoetoe@xxxxxxxxxx>]

Hi,

>> This reminds me of a pending question I've had that might
>> help. I've checked the manual, but can someone refresh my
>> mind on the SQL function that takes one value from a list of
>> two, where one is a database value, and the other is a value
>> to select in case the database value is null? (Or something
>> like that?)

> I believe you're thinking of COALESCE:

> select lastname, firstname, coalesce(char(termination_date), 'ACTIVE') from
> employees

Sounds more like "CASE" for me; in this sample i'm setting a field to
be used in a HTML class="xxx" later on:

SELECT  ...,
        CASE
        WHEN COENDT > COENDP THEN 'OVERDUE'
        ELSE                      ''
        END AS CLASSCOENDT,
        CASE
        WHEN SUM(CODBWR) >= SUM(CODBWP)                    THEN 'OK'
        WHEN SUM(CODBWR) > 0 AND SUM(CODBWR) < SUM(CODBWP) THEN 'ATTN'
        WHEN SUM(CODBWR) < 0                               THEN 'ALERT'
        ELSE                                                    ''
        END AS CLASSCODB,
...

0.02 Euro

best regards,

Anton Gombkötö