Timeline for Should I avoid data duplication?
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
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| Feb 22, 2015 at 12:07 | answer | added | Greg | timeline score: 1 | |
| Feb 21, 2015 at 0:26 | comment | added | Tulains Córdova | Could you substitute that mind map with a Crow's foot ER diagram? Example: upload.wikimedia.org/wikipedia/commons/9/91/… | |
| Feb 21, 2015 at 0:19 | comment | added | Tulains Córdova | What do you mean by "assign a user to a contact"? | |
| Feb 20, 2015 at 17:14 | history | tweeted | twitter.com/#!/StackProgrammer/status/568821076207280128 | ||
| Feb 20, 2015 at 16:38 | comment | added | Robbie Dee | As someone who has actually worked as a DBA on RDBMs with billions of rows, denormalisation is sometimes a necessary evil for performance reasons. However, that is primarily an implementation concern (what we used to called physical design). You should aim to eliminate any data duplication in the initial (logical) design. | |
| Feb 20, 2015 at 15:36 | comment | added | Doc Brown | Data duplication is not always a bad thing, decoupling might be sometimes a serious reason to duplicate data when having careful designed synching mechanisms. But when designing a business model for an ERP system from the ground, as shown here, I would avoid any redundancy as hell. And do yourself a favor, read martinfowler.com/apsupp/accountability.pdf first before reinventing the wheel. | |
| Feb 20, 2015 at 15:30 | comment | added | Mawg | I.M.O data duplication is always A Bad Thing (since a single datum cannot get out of synch with itself). YMMV | |
| Feb 20, 2015 at 15:16 | comment | added | Willem-Aart | Most definitely, but I'd like to keep things separate from each other, such as user data and contact (CRM) data. Is data duplication allowed in these instances? | |
| Feb 20, 2015 at 15:13 | comment | added | Mawg | Data duplication is A Bad Thing en.wikipedia.org/wiki/Third_normal_form | |
| Feb 20, 2015 at 15:12 | history | edited | Willem-Aart | CC BY-SA 3.0 | added 47 characters in body |
| Feb 20, 2015 at 15:01 | history | edited | Willem-Aart | CC BY-SA 3.0 | added 168 characters in body |
| Feb 20, 2015 at 15:00 | review | First posts | |||
| Feb 20, 2015 at 16:50 | |||||
| Feb 20, 2015 at 14:56 | history | asked | Willem-Aart | CC BY-SA 3.0 |