Can I use… over() (empty over clause)


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The over clause can be empty, meaning over all rows of the result.

SELECT *, COUNT(*) OVER()
  FROM …

Returns the original result with an additional column stating how many rows the result has.

Normative References

The over clause is defined in ISO/IEC 9075:2016-2 as part of optional feature T611, “Elementary OLAP operations”.

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