Active Record Migrations

GPTKB entity

Statements (53)
Predicate Object
gptkbp:instanceOf Ruby on Rails feature
https://www.w3.org/2000/01/rdf-schema#label Active Record Migrations
gptkbp:introducedIn gptkb:Ruby_on_Rails_1.0
gptkbp:license gptkb:MIT_License
gptkbp:maintainedBy gptkb:Ruby_on_Rails_Core_Team
gptkbp:partOf gptkb:Active_Record
gptkbp:provides default values
add_column method
add_foreign_key method
add_index method
add_reference method
change method
change_column method
change_table method
create_table method
down method
drop_table method
execute method
foreign key constraint
index helper
null constraint
polymorphic associations
primary_key helper
rails db:migrate command
rails db:migrate:status command
rails db:reset command
rails db:rollback command
rails db:schema:load command
rails db:seed command
rails db:structure:dump command
references helper
remove_column method
remove_foreign_key method
remove_index method
remove_reference method
rename_column method
rename_table method
reversible blocks
reversible method
schema.rb file
structure.sql file
timestamps helper
unique constraint
up method
gptkbp:supports gptkb:MySQL
gptkb:SQLite
gptkb:PostgreSQL
gptkb:SQL_Server
gptkbp:usedFor database versioning
database schema management
gptkbp:writtenBy gptkb:Ruby
gptkbp:bfsParent gptkb:Ruby_on_Rails
gptkbp:bfsLayer 6