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Support WITH clause use using SET operators

jaramillOct 13 2016 — edited Oct 13 2016

Currently when writing a SQL query using Oracle's Set Operators if you have any of the queries (other than the top-most one) using the WITH clause, then Oracle will raise an exception (see below).  Not sure if this is changed in Oracle 12c but if not then another database idea for the next iteration.

ORA-32034: unsupported use of WITH clause
Cause: Inproper use of WITH clause because one of the following two reasons:
   1. nesting of WITH clause within WITH clause not supported yet
   2. For a set query, WITH clause can't be specified for a branch.
   3. WITH clause cannot be specified within parenthesis.
Action: correct query and retry

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Added on Oct 13 2016
#active, #database-ideas, #database-ideas-ideas
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