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IWETHEY Home / IWETHEY Board / Theory and Practice of Programming Forum / Limitation is in your head
Post #3,777
by tuberculosis
Picture of tuberculosis
8/3/01 4:38:55 PM
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New Limitation is in your head
table rowsMatchingKeys: (dictionary dictionaryWithObjectsAndKeys: value1, key1, value2, key2, value3, key3, nil, nil)

If you like this sort of thing - look at TOM [link|http://www.gerbil.org|http://www.gerbil.org]. The language supports tuples directly as a data type.
Post #3,790
by tablizer
8/3/01 8:46:43 PM
Reply
New Software engineering is all about our heads
>> table rowsMatchingKeys: (dictionary dictionaryWithObjectsAndKeys: value1, key1, value2, key2, value3, key3, nil, nil) <<

If I am reading this correctly, then it is NOT a dictionary: it is a nascent database creater/manager.

I suppose next you will brag about how it can store objects, "not just data". To which I reply, "whoopty doo". And then point out how that makes it hard to share with other languages and paradigms, among other gripes.

Smalltalk fans are especially likely to brag about how ST "replaces or hides databases".

________________
oop.ismad.com
Post #3,963
by tuberculosis
Picture of tuberculosis
8/6/01 1:43:43 PM
Reply
New No
<quote>
If I am reading this correctly, then it is NOT a dictionary: it is a nascent database creater/manager.
</quote>

What do you think a tuple/row is? Its an ordered list of values. Combine a tuple with a schema (meta data about what is in each location) and its a set of key-value pairs. Which is the same as a dictionary - a set of key value pairs.

Is that a database? Sure. What is the underlying implementation of this database? I don't know or care - could be an interface that interacts with a SQL database table or view, or it could be an in memory data structure like an array of dictionaries.

The dictionary in this instance is being used as the match qualifier ('where' statement). Again, a dictionary is just a convenient programming construct for set of key-value pairs.

I think you have a lot of conceptual issues around programming for databases.
Post #3,969
by tablizer
8/6/01 4:06:03 PM
Reply
New not necessarily "ordered"
>> What do you think a tuple/row is? Its an ordered list of values. <<

You could say that a "row" is a dictionary, but NOT necessarily "ordered". Some RDBMS provide a default ordering, but I consider these convenience attributes, and not a prerequisite.

________________
oop.ismad.com
     Language with syntax like command(params) ? - (tablizer) - (30) - July 30, 2001, 11:11:10 PM EDT
         Most existing languages have that syntax: C, Pascal, Java... -NT - (CRConrad) - (21) - July 31, 2001, 02:29:49 AM EDT
             I think you are missing my point - (tablizer) - (20) - Aug. 1, 2001, 02:40:24 AM EDT
                 Haven't seen one but ... - (altmann) - (2) - Aug. 1, 2001, 05:27:44 AM EDT
                     good suggestions, but..... - (tablizer) - (1) - Aug. 1, 2001, 01:04:57 PM EDT
                         Haskell - (ChrisR) - Aug. 1, 2001, 04:00:39 PM EDT
                 Isn't it obvious that that's fscking styoopid?!? -NT - (CRConrad) - (3) - Aug. 1, 2001, 07:01:41 AM EDT
                     CRC: Not Delphi == Stupid - (tablizer) - (2) - Aug. 1, 2001, 12:53:06 PM EDT
                         It appears to be a different way to do things - (orion) - (1) - Aug. 1, 2001, 02:02:48 PM EDT
                             are you being a meanee? - (tablizer) - Aug. 2, 2001, 01:51:18 AM EDT
                 Syntax is syntax. - (admin) - (2) - Aug. 1, 2001, 09:38:03 AM EDT
                     complex? - (tablizer) - (1) - Aug. 2, 2001, 01:13:36 PM EDT
                         Simple. - (a6l6e6x) - Aug. 2, 2001, 03:23:56 PM EDT
                 Why? - (ChrisR) - (8) - Aug. 1, 2001, 11:29:48 AM EDT
                     not the full story - (tablizer) - (7) - Aug. 1, 2001, 12:39:34 PM EDT
                         Not a contest with Lisp - (ChrisR) - (6) - Aug. 1, 2001, 03:54:11 PM EDT
                             Guessing but... - (Fearless Freep) - (5) - Aug. 2, 2001, 03:48:52 PM EDT
                                 I doubt it... - (ChrisR) - (4) - Aug. 2, 2001, 06:09:41 PM EDT
                                     not true - (tablizer) - Aug. 3, 2001, 01:40:15 AM EDT
                                     Yes, he's been vocal - but then, he wasn't writing a parser! -NT - (CRConrad) - (2) - Aug. 3, 2001, 02:32:03 AM EDT
                                         A "walk a mile in another's compiler" argument? - (tablizer) - (1) - Aug. 3, 2001, 12:54:34 PM EDT
                                             (addendum) - (tablizer) - Aug. 3, 2001, 03:42:31 PM EDT
                 (minor correction) - (tablizer) - Aug. 2, 2001, 01:17:50 PM EDT
         Interesting idea. - (static) - July 31, 2001, 03:38:18 AM EDT
         TCL? - (Arkadiy) - July 31, 2001, 10:12:07 AM EDT
         Name your arguments - (tuberculosis) - (5) - Aug. 2, 2001, 08:04:47 PM EDT
             not sure I fully agree - (tablizer) - (4) - Aug. 3, 2001, 01:04:03 PM EDT
                 Limitation is in your head - (tuberculosis) - (3) - Aug. 3, 2001, 04:38:55 PM EDT
                     Software engineering is all about our heads - (tablizer) - (2) - Aug. 3, 2001, 08:46:43 PM EDT
                         No - (tuberculosis) - (1) - Aug. 6, 2001, 01:43:43 PM EDT
                             not necessarily "ordered" - (tablizer) - Aug. 6, 2001, 04:06:03 PM EDT

5 out of 7, perfect.
48 ms