Intersystems Cache Dummy Table
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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