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Decision to use KEY or UNIQUE KEY

score 75 · Answer 1 · 2015-06-13 11:00:29

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Decision to use KEY or UNIQUE KEY

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UNIQUE index spanning multiple tables

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score 1870 · Answer 7 · 2013-12-13 21:29:15

Why do I get a "indexed columns are not unique" error when trying to add a UNIQUE INDEX to a SQLite Table?

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TechQA.

List Question

Decision to use KEY or UNIQUE KEY

How does a unique partial index work inside an array in Mongo

Unique and Sparse Schema-level Index MongoDB and Mongoose

MySql - how can you create a unique constraint on a combination of two values in two columns

Error in creating a unique index

UNIQUE index spanning multiple tables

Why do I get a "indexed columns are not unique" error when trying to add a UNIQUE INDEX to a SQLite Table?

Django using unique_together in a subclass of custom user model

Postgresql Unique Index on two columns with null value

Unique filtered index with multiple conditions in SQL Server

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