sql - How to select maximum value of two identical columns in same table? - 


     id1  id2  name 1     1    2   2     3    4   b 3     5    6   c 4     7    8   d 5     9    10  e  select id1, id2, name emp3 id2 in (select max(id2) emp3)

how can print maximum number?

use

select id2 emp3 id2 in (select max(id2) emp3)

this print 10

if want maximum among 2 columns use

select     case          when max(id1) >= max(id2) max(id1)         when max(id2) >= max(id1) max(id2)     end maxvalue emp3

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