If I ignore the word USER and FUNCTION in UDF, I am left with DEFINED. What does DEFINED mean?If we're being properly precise, user-defined should be hyphenated so then the "defined" is only meaningful in relation to "user". You cannot split it into words. In essence, the user as opposed to Microsoft I suppose.
"Mongo DB Is Web Scale"In this sentence
>>>The UDF is a function that the user creates for a specific purpose.
Isn't that true for normal functions as well :)
>>>The "normal" functions are functions that suite the needs of everybody that uses Excel.
Hmm, with respect, that is not true...