Max, Min and Count with Group By

Question

Hello,
i want the max, min and count of a table, which is grouped by a column
I need a combination of these two selects:
select
     max(COUNTRY_S) MAXVALUE,
     min(COUNTRY_S) MINVALUE
from
     tab_Country
select
     count(*)
from
     (select COUNTRY_TXT from tab_Country group by COUNTRY_TXT) ;
The result should be one row with the max and min value of the table and with the count of the grouped by table, not the max and min of each group! - i hope you understand my question?
Is this possible in one SQL-select?
Thank you very much
Best regards
Heidi

Answer 1

Hi, Heidi,
HeidiWeber wrote:
Hello,
i want the max, min and count of a table, which is grouped by a column
I need a combination of these two selects:
select 
     max(COUNTRY_S) MAXVALUE, 
     min(COUNTRY_S) MINVALUE 
from 
     tab_Country 
select 
     count(*) 
from 
     (select COUNTRY_TXT from tab_Country group by COUNTRY_TXT) ; 
The result should be one row with the max and min value of the table and with the count of the grouped by table, not the max and min of each group! - i hope you understand my question?
Is this possible in one SQL-select?
Thank you very much
Best regards
Heidi
It's not clear what you want.  Perhaps
SELECT  MAX (country_s)               AS max_country_s
,       MIN (country_s)               AS min_country_s
,       COUNT (DISTINCT country_txt)  AS count_country_txt
FROM    tab_country
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) for all the tables involved, and the results you want from that data.
Explain, using specific examples, how you get those results from that data.
Always say what version of Oracle you're using (e.g. 11.2.0.2.0).
See the forum FAQ: https://forums.oracle.com/message/9362002