database-design

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What is the difference between Primary Key and unique key constraint?
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primary-key sql-server-2005 database-design sql-server
Can a database support "Atomicity" but not "Consistency" or vice-versa?
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consistency atomic database-design database
Database Schema for multiple authentications, Facebook Connect, Twitter, OpenID, etc
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twitter facebook database-design openid
Normalizing/validation for international data sets in a database?
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validation normalization internationalization database-design
Use email address as primary key?
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50521
database-design postgresql sql database
Unique index or unique key?
user_3846690
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49
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30386
unique-index unique-constraint database-design sql-server
Float or decimal for prices?
user_808400
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17481
database-design sql-server mysql sql database
What is the best way to keep changes history to database fields?
user_884470
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16284
database-design database
Relational database design question - Surrogate-key or Natural-key?
user_2427690
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3518
natural-key surrogate-key data-modeling database-design sql
How to insert arrays into a database?
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database-design numpy python
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