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New posts in entity-relationship
is optionality (mandatory, optional) and participation (total, partial) are same?
Jul 11, 2019
entity-relationship
Core Data Relationship Fault
Nov 05, 2022
xcode
core-data
interface-builder
entity-relationship
Parent object is in EntityState.Unchanged, but it still inserted in the Database
Sep 03, 2020
c#
entity-framework
entity-relationship
SQLAlchemy - Multiple Foreign key pointing to same table same attribute
Nov 20, 2022
python
sqlite
sqlalchemy
flask-sqlalchemy
entity-relationship
Should @JoinTable be specified in both sides of a @ManyToMany relationship?
Sep 08, 2022
java
hibernate
jpa
many-to-many
entity-relationship
When to use Associative entities?
Aug 23, 2022
entity-relationship
Foreign key mapping inside Embeddable class
Sep 30, 2019
java
jpa
entity-relationship
composite-key
embeddable
Implementing one-to-zero-or-one relation in SQL Server
Sep 20, 2022
sql-server
sql-server-2008
entity-framework-4.1
entity-relationship
relation
rails 3 scaffolding of relational model
Nov 16, 2022
mysql
ruby-on-rails
ruby-on-rails-3
entity-relationship
When is it appropriate to use a bidirectional association and when is it not?
Nov 08, 2022
hibernate
orm
jpa
entity-relationship
@ManyToOne mapping fails to save parent ID
May 20, 2018
java
jpa
entity-relationship
How to add a Map<String, Person> in an entity class?
Mar 10, 2016
jpa
dictionary
eclipselink
entity-relationship
SQLAlchemy ER diagram in python 3
Feb 26, 2022
python
python-3.x
sqlalchemy
entity-relationship
What's the point of a candidate key?
Sep 16, 2022
database
database-design
entity-relationship
relational-database
How are super- and subtype relationships in ER diagrams represented as tables?
Sep 16, 2022
database
database-design
erd
entity-relationship
NSManagedObject can't get attributes from NSAtomicStoreCacheNode
Dec 13, 2020
objective-c
core-data
attributes
entity-relationship
nsmanagedobject
EF4 code-first: defining object relationships, foreign keys
Sep 15, 2022
.net
entity-framework
mapping
entity-relationship
code-first
Generating ERD diagrams within Visual Studio
Sep 14, 2022
database
visual-studio
entity-relationship
erd
entity-relationship-model
Generate an E-R Diagram by reverse-engineering a database [closed]
Jun 19, 2022
database
diagram
entity-relationship
Hibernate @OneToMany without a separate join table
Oct 03, 2021
java
hibernate
jpa
join
entity-relationship
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