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views:

121

answers:

2
Q: 

Vertical and Horizontal Tables

Can anyone tell me what's the performance gain when using a vertical table for searching? What's faster, a vertical or an horizontal table?

+3  A: 

A good article

Using Vertical and Horizontal Table Structures in Oracle

rahul  2009-09-29 12:56:34
+1  A: 

By "vertical" table, do you mean the EAV model? If so, it is generally slower to search than a normal "horizontal" table. Its usual justification is not performance, but flexibility at the cost of performance and probably data integrity too.

Tony Andrews  2009-09-29 15:44:13

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