diff --git a/lib/active_record/connection_adapters/oracle_enhanced/database_statements.rb b/lib/active_record/connection_adapters/oracle_enhanced/database_statements.rb
index <HASH>..<HASH> 100644
--- a/lib/active_record/connection_adapters/oracle_enhanced/database_statements.rb
+++ b/lib/active_record/connection_adapters/oracle_enhanced/database_statements.rb
@@ -224,6 +224,10 @@ module ActiveRecord
 
         # fallback to non bulk fixture insert
         def insert_fixtures(fixtures, table_name)
+          ActiveSupport::Deprecation.warn(<<-MSG.squish)
+            `insert_fixtures` is deprecated and will be removed in the next version of Rails.
+            Consider using `insert_fixtures_set` for performance improvement.
+          MSG
           fixtures.each do |fixture|
             insert_fixture(fixture, table_name)
           end
Deprecated `insert_fixtures`
Follow up #<I>