Question

I have two columns X and Y where the values could be as below:

  X        Y
--------------  
 rob     one.1 
 rob     two.2
 rob     abc.3
 rob     pqr.4
 harry   lmn.3
 harry   lkja.4
 harry   lkjs.6

I am querying on column X. That is

select Y where X='rob'
select Y where X='harry'

I want to write a query on above columns where the output will be strings like “rob # 1,2,3,4” and “harry # 3,4,6”

So first part of the result string will be the X value followed by a constant # followed by the numbers in Y after ‘.’ dot.

So rob gets 1,2,3,4 and harry has 3,4,6

Thanks for reading

Answer 1

I achieved it using aggregate functions in db2:

concat('Harry # ',substr( xmlserialize( xmlagg( xmltext( concat( ', ', substr(myTable.salary, locate('.',myTable.salary)+1) ) ) ) as varchar( 1024 ) ), 3 ))