Example of an Oracle PIVOT clause with subquery

Question

Oracle\'s definition of the PIVOT clause specifies that there is a possibility to define a subquery in the IN clause. A fictional example of what I would imagine th

Answer 1

i had a similar requirement. I achieved this via pl sql wrote a dynamic sql and added it to the pivot IN clause. Ofcourse pivot query was also a dynamic sql. But in normal pivot clause this is not possible, using sql.

Answer 2

Apparently, I was too lazy to read to the end of the documentation... Further down, the documentation states:

subquery A subquery is used only in conjunction with the XML keyword. When you specify a subquery, all values found by the subquery are used for pivoting. [...]

This will work

PIVOT XML (AVG(salary) FOR (company) IN (SELECT DISTINCT company FROM companies))

See the full documentation

http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_10002.htm#CHDFAFIE