Tag relational-theory - Это страница 6 - GeneraCodice

Is a table without a primary key normalized?

https://www.generacodice.com/ru/articolo/2896890/is-a-table-without-a-primary-key-normalized
  database-design  -  normalization  -  relational-theory
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What is the meaning of “minimal key”?

https://www.generacodice.com/ru/articolo/2862128/what-is-the-meaning-of-minimal-key
  terminology  -  primary-key  -  relational-theory  -  candidate-key
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Inserting data into a 3NF database [closed]

https://www.generacodice.com/ru/articolo/2837703/inserting-data-into-a-3nf-database-closed
  mysql  -  database-design  -  phpmyadmin  -  relational-theory
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For BCNF decomposition, is it okay to have a relation with none of the original functional dependencies?

https://www.generacodice.com/ru/articolo/2825862/for-bcnf-decomposition-is-it-okay-to-have-a-relation-with-none-of-the-original-functional-dependencies
  database-design  -  normalization  -  relational-theory
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Confusion with Tuple Relation Calculus Operations

https://www.generacodice.com/ru/articolo/2825132/confusion-with-tuple-relation-calculus-operations
  database-theory  -  relational-theory  -  relational-calculus
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Is sql_variant compatible with First Normal Form (1NF)?

https://www.generacodice.com/ru/articolo/2803101/is-sql-variant-compatible-with-first-normal-form-1nf
  sql-server  -  database-design  -  normalization  -  relational-theory  -  sql-variant-property
dba.stackexchange dba.stackexchange

Question concerning minimal/cannonical cover

https://www.generacodice.com/ru/articolo/2793937/question-concerning-minimal-cannonical-cover
  dependencies  -  join  -  normalization  -  relational-algebra  -  relational-theory
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What normalization rules does this table break

https://www.generacodice.com/ru/articolo/2793684/what-normalization-rules-does-this-table-break
  normalization  -  relational-theory  -  eav
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Relations and Sets

https://www.generacodice.com/ru/articolo/2768444/relations-and-sets
  schema  -  primary-key  -  relational-theory  -  cardinality-estimates
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Equivalent of SQL’s “INNER JOIN USING” in relational algebra

https://www.generacodice.com/ru/articolo/2756630/equivalent-of-sql-s-inner-join-using-in-relational-algebra
  join  -  relational-algebra  -  relational-theory
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