Re: [EXTERNAL] Quick SQL question

On 11/26/19 11:26 AM, Alan Shore via MIDRANGE-L wrote:

Do an exception join on the detail file
This will list all the detail records that do NOT have an order number in the header file

Select a.* from ORDDETAIL a exception join ORDHEADER b on
a. ODOHNO = b. OHOHNO

Thanks to everybody. I used Mr. Shore's syntax, but only because it was the first answer I looked at with example syntax.

A follow-up question:
If I do the above with "select count(odohno)," I get 126000. Based on another information source, that seems high. If I then add "group by odohno," I see that there are lots of odohno values with more than one record.

How would I get the total number of distinct odohno values? I tried "select distinct count(odohno)," and it still gave me the 126000.

--
JHHL