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Editorial Team
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Asked: 2026-05-27T22:19:53+00:00

Oracle’s definition of the PIVOT clause specifies that there is a possibility to define

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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 this to be is this

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

With that, however, I get an ORA-00936: Missing expression error. Unfortunately, errors from this new PIVOT clause are usually rather cryptic. Can anyone give me a good example of how a subquery can be used in the IN clause of the PIVOT clause?

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1 Answer

  1. Editorial Team

    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

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