diff --git a/changelog/change_db_migration_file_pattern.md b/changelog/change_db_migration_file_pattern.md
new file mode 100644
index 0000000000..46a35cb611
--- /dev/null
+++ b/changelog/change_db_migration_file_pattern.md
@@ -0,0 +1 @@
+* [#1019](https://github.com/rubocop/rubocop-rails/pull/1019): Change db migration file pattern so that it supports multiple db. ([@r7kamura][])
diff --git a/config/default.yml b/config/default.yml
index a406ce90e9..7f8e0fdaba 100644
--- a/config/default.yml
+++ b/config/default.yml
@@ -160,8 +160,9 @@ Rails/AddColumnIndex:
     index might be used.
   Enabled: pending
   VersionAdded: '2.11'
+  VersionChanged: '<<next>>'
   Include:
-    - db/migrate/*.rb
+    - db/**/*.rb
 
 Rails/AfterCommitOverride:
   Description: >-
@@ -249,12 +250,13 @@ Rails/BulkChangeTable:
     - https://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/Table.html
   Enabled: true
   VersionAdded: '0.57'
+  VersionChanged: '<<next>>'
   Database: null
   SupportedDatabases:
     - mysql
     - postgresql
   Include:
-    - db/migrate/*.rb
+    - db/**/*.rb
 
 Rails/CompactBlank:
   Description: 'Checks if collection can be blank-compacted with `compact_blank`.'
@@ -284,14 +286,15 @@ Rails/CreateTableWithTimestamps:
                   when creating a new table.
   Enabled: true
   VersionAdded: '0.52'
+  VersionChanged: '<<next>>'
   Include:
-    - db/migrate/*.rb
+    - db/**/*.rb
   Exclude:
     # Respect the `active_storage_variant_records` table of `*_create_active_storage_tables.active_storage.rb`
     # and `*_create_active_storage_variant_records.active_storage.rb`
     # auto-generated by `bin/rails active_storage:install` even if `created_at` is not specified.
-    - db/migrate/*_create_active_storage_tables.active_storage.rb
-    - db/migrate/*_create_active_storage_variant_records.active_storage.rb
+    - db/**/*_create_active_storage_tables.active_storage.rb
+    - db/**/*_create_active_storage_variant_records.active_storage.rb
 
 Rails/Date:
   Description: >-
@@ -648,8 +651,9 @@ Rails/MigrationClassName:
   Description: 'The class name of the migration should match its file name.'
   Enabled: pending
   VersionAdded: '2.14'
+  VersionChanged: '<<next>>'
   Include:
-    - db/migrate/*.rb
+    - db/**/*.rb
 
 Rails/NegateInclude:
   Description: 'Prefer `collection.exclude?(obj)` over `!collection.include?(obj)`.'
@@ -663,8 +667,9 @@ Rails/NotNullColumn:
   Description: 'Do not add a NOT NULL column without a default value.'
   Enabled: true
   VersionAdded: '0.43'
+  VersionChanged: '<<next>>'
   Include:
-    - db/migrate/*.rb
+    - db/**/*.rb
 
 Rails/OrderById:
   Description: >-