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→Returning Results
===Returning Results===
It is not possible to mix different types of expressions in a query result. The outermost expression of a query must either be a collection of updating or non-updating expressions. The only way to perform any updating queries and return a result at the same time is to use the BaseX-specific <code>[[Database Module#db:output|db:output()]] </code> function, which caches the results of its arguments at runtime and returns them after all updates have been processed.
Example: Perform update and return success message.
