http://dbmsmusings.blogspot.com/2010/03/distinguishing-two-major-types-of_29.html
I want to leave a comment and to correct it here:
It is meaningless to compare the two groups, they target to different applications. I think the post just make more confusion. And what Mr. Stonebraker said is also not right.
I think the only thing which make these confusions is the term "column" in Group A. In fact, it is not traditional "column" of RDBMS area. And your example of a traditional spreadsheet table is also not the real target of Group A. The "column" name in Group A is in fact data (not schema).
If have got to change the term, I think we can change the term "column" in Group A to "end-key". In fact, in Bigtable, there is no column, it is "qualifier".
In short:
(1) Group A's "column" is in data, not schema.
(2) Group B's "column" is in schema.
They are different in conception and application target.
This is such a great resource that you are providing and you give it away for free. I love seeing websites that understand the value of providing a quality resource for free. Want to find out the net worth of your favorite entrepreneurs, athletes, actors, celebrities? See more in Celebrity net worth.
ReplyDeletevery nice Job Alert Website JobAlert247
ReplyDeleteIf you have any medical condition like injury or disability then you should see a kinesiologist. We have an experienced team of kinesiologists who can offer the benefits of both practices and ensure optimal healing and strengthening of your body. At SpinWise, we provide Kinesiology sessions in Melbourne that can be used as an alternative to counselling and psychotherapy, particularly where the cause of the malaise is unconscious, or relevant to past life experiences.
ReplyDeletemobile wallet uae
Good Post! Thank you so much for sharing this pretty post, it was so good to read and useful to improve my knowledge as updated one, keep blogging.
ReplyDelete3D Laser Scanning Targets
3D Scanning Reverse Engineering
Reverse Engineering Services
Excellent Blog to read. You have shared a useful information. Thank you.
ReplyDeleteSEO Training in Chennai
SEO Course in Chennai
Magic Gel In Pakistan
ReplyDeleteMaxman Pressure Gauge Penis Pump
High Vacuum Mens Pump In Pakistan
Why Not 12 Cream In Pakistan
Strong Man Cream In Pakistan
Kick Balm In Pakistan