Referential integrity is a property of data which requires the value of an attribute/column of a relation table to exist as a value of another attribute/column in another relation table
One of the reasons why referential integrity should not be enforced is performance. Because Db has to validate all updates …
database database-design referential-integrityI am trying to update an entity in EF6. I have read that if I wish to change a ForeignKey …
c# entity-framework referential-integrityIf I define a Customer and Order model in which a Customer "has many" Orders and the Order "belongs to" …
ruby-on-rails database foreign-keys referential-integrityGiven the schema: What I need is having every user_identities.belongs_to reference an users.id. At the same …
mysql sql database-design referential-integrityI have a table, ProductSupportArticles: ProductSupportArticleID int NOT NULL <primary key> ParentArticleID int NULL ProductID int NOT NULL …
sql-server referential-integrity check-constraintsI have a problem with my delete statement. I have two tables: table vehicule_loan( vehicule TEXT NOT NULL UNIQUE, ); …
sql postgresql foreign-keys referential-integrityI have two tables, object and object_data, with object referencing object_data by foreign key (the relation is 1:1). For …
sql postgresql foreign-keys referential-integrityI have a table with 3 columns: ID, PARENT_ID, NAME PARENT_ID has a foreign key relationship with ID in …
sql oracle hierarchical-data referential-integrityI am facing a strange issue The Zend_DB_Adapter's beginTrasaction() and commit() methods don't seem to be working as …
mysql zend-framework transactions zend-db referential-integrityWe are planning on introducing simple Audit Trail in our database using triggers and separate history table for each table …
sql database-design referential-integrity audit-trail