MySQL Forums :: Database Design and Data Modelling :: Base and Sub-types: single or multiple tables?
Re: Base and Sub-types: single or multiple tables?
Posted by: Rick James ()
Date: May 26, 2011 10:26PM
(a) A single "person" table with all possible data from all sub-types, or -- No
(b) A table for "person" with the common data, and a table each for "customer" and "salesperson" each with the specific data. -- Yes
(a) will get messier and messier as time goes on.
For (b), you will have to master JOINs, but once you understand them, it will be easy.
(b) A table for "person" with the common data, and a table each for "customer" and "salesperson" each with the specific data. -- Yes
(a) will get messier and messier as time goes on.
For (b), you will have to master JOINs, but once you understand them, it will be easy.
| Subject | Written By | Posted |
|---|---|---|
| Base and Sub-types: single or multiple tables? | Matt Houser | 05/26/2011 08:56AM |
| Re: Base and Sub-types: single or multiple tables? | Peter Brawley | 05/26/2011 11:52AM |
| Re: Base and Sub-types: single or multiple tables? | Matt Houser | 05/26/2011 12:54PM |
| Re: Base and Sub-types: single or multiple tables? | Rick James | 05/26/2011 10:26PM |
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