علامة relational-theory - هذه الصفحة 7 - GeneraCodice

Inserting data into a 3NF database [closed]

https://www.generacodice.com/ar/articolo/2837703/inserting-data-into-a-3nf-database-closed
  mysql  -  database-design  -  phpmyadmin  -  relational-theory
dba.stackexchange dba.stackexchange

For BCNF decomposition, is it okay to have a relation with none of the original functional dependencies?

https://www.generacodice.com/ar/articolo/2825862/for-bcnf-decomposition-is-it-okay-to-have-a-relation-with-none-of-the-original-functional-dependencies
  database-design  -  normalization  -  relational-theory
dba.stackexchange dba.stackexchange

Confusion with Tuple Relation Calculus Operations

https://www.generacodice.com/ar/articolo/2825132/confusion-with-tuple-relation-calculus-operations
  database-theory  -  relational-theory  -  relational-calculus
dba.stackexchange dba.stackexchange

Is sql_variant compatible with First Normal Form (1NF)?

https://www.generacodice.com/ar/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/ar/articolo/2793937/question-concerning-minimal-cannonical-cover
  dependencies  -  join  -  normalization  -  relational-algebra  -  relational-theory
dba.stackexchange dba.stackexchange

What normalization rules does this table break

https://www.generacodice.com/ar/articolo/2793684/what-normalization-rules-does-this-table-break
  normalization  -  relational-theory  -  eav
dba.stackexchange dba.stackexchange

Relations and Sets

https://www.generacodice.com/ar/articolo/2768444/relations-and-sets
  schema  -  primary-key  -  relational-theory  -  cardinality-estimates
dba.stackexchange dba.stackexchange

Equivalent of SQL’s “INNER JOIN USING” in relational algebra

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

Is there a name for this pattern, representing one-to-many relationships by adding columns with an index to a single table?

https://www.generacodice.com/ar/articolo/2736525/is-there-a-name-for-this-pattern-representing-one-to-many-relationships-by-adding-columns-with-an-index-to-a-single-table
  database-design  -  database-theory  -  relational-theory
dba.stackexchange dba.stackexchange

Do data types go into a Relational Data Model (RDM)?

https://www.generacodice.com/ar/articolo/2713728/do-data-types-go-into-a-relational-data-model-rdm
  database-design  -  relational-theory
dba.stackexchange dba.stackexchange
العثور على نتائج: 395
scroll top