primary-key

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What is the difference between a primary key and a unique constraint?
user_1603030
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primary-key sql
Using Rails, how can I set my primary key to not be an integer-typed column?
user_2190
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primary-key migration ruby-on-rails database
How can I define a composite primary key in SQL?
user_1222380
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329879
composite-primary-key primary-key sql
Entity Framework and SQL Server View
user_758460
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137
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sql-view primary-key sql-server-2005 entity-framework .net-3.5
GUID vs INT IDENTITY
user_728580
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61518
primary-key guid database
Sqlite primary key on multiple columns
Bogdan_Gavril_216340
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714
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325145
composite-primary-key primary-key ddl sqlite
Foreign key referring to primary keys across multiple tables?
Admin1
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170646
primary-key foreign-keys sql
ADO.NET Entity Framework: Update Wizard will not add tables
Robert_Claypool_235660
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primary-key ado.net visual-studio-2008 entity-framework .net
Strings as Primary Keys in SQL Database
user_338630
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213
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162694
primary-key database-design sql database string
sql primary key and index
danifo_563020
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primary-key indexing tsql sql-server sql
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