× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. MIDRANGE-L
  3. April 2019

Re: [EXT] Re: How can I detect an invalid date string in SQL?

On Wed, Apr 17, 2019 at 11:10 AM Salsman, Michael
<Michael.Salsman@xxxxxxxxxxxxxx> wrote:

This worked for me. Not the most flexible but it works and can be altered in the future for you.

select storagedt, CASE WHEN REGEXP_LIKE(trim(TEST),'[\d][\d][\d][\d][-][\d][\d][-][\d][\d]') then dec(date(storagedt)) else 0 end as "as Decimal" from
mytable

You don't need to put every character being matched in a set. So you
could do '\d\d\d\d-\d\d-\d\d' instead.

Moreover, the regular expressions in Db2 for i (not sure about other
databases) support counting, so you can actually do
'\d{4}-\d{2}-\d{2}'. This is quite standard among regular expression
processors.

John Y.

As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow-Ups:
Replies:
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.