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Intersystems Cache Dummy Table

开发者 https://www.devze.com 2023-02-27 10:30 出处:网络
Does Intersystems Cache database have a dummy table similar to Oracle\'s DUAL? I want to do 开发者_如何学Gosomething similar to:

Does Intersystems Cache database have a dummy table similar to Oracle's DUAL?

I want to do 开发者_如何学Gosomething similar to:

SELECT 1; -- mysql
-- or
SELECT 1 FROM DUAL; -- oracle


Older versions of Cache do not support this. You can create a dummy table yourself called DUAL or DUMMY. Newer versions of Cache (2009.1+) support select with no FROM clause.

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