Support function that verifies that an object holding a reference to a foreign object is still valid for communicating with the RDBMS
dbObjects are R/S-Plus remote references to foreign objects.
This introduces differences to the object's semantics such as
persistence (e.g., connections may be closed unexpectedly),
thus this function provides a minimal verification to ensure
that the foreign object being referenced can be contacted.
a logical scalar.
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## Not run: cursor <- dbSendQuery(con, sql.statement) isIdCurrent(cursor) ## End(Not run)
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