Access to the OS file system from D3 is possible through the OSFI – the Open System File Interface. Over time I’ve noticed some confusion in how our colleagues use and under-use this feature, so I thought I’d clarify a couple points here.
Back in March 2008 I wrote a blog here called Lonely Shell Variables. Today I was fiddling with shell variables in D3 (also called Environment variables) and once again I marvelled at the power and flexibility – but I’d bet the number of people who really use this functionality can be counted on a single hand. Today, in an unusually […]
A question came up in comp.databases.pick that asked how we could use a pre-defined set of values in a D3 query. For example: SORT CUSTOMERS WITH STATE “AZ” “CA” “NM” “OR” … but getting the state codes dynamically. Sure, we can do that, using shell variables.