Oracle needs sequence value for primary key in INSERT statement

activerecord/test/cases/database_statements_test.rb

@@ -6,7 +6,14 @@ def setup
   end
 
   def test_insert_should_return_the_inserted_id
-    id = @connection.insert("INSERT INTO accounts (firm_id,credit_limit) VALUES (42,5000)")
+    # Oracle adapter uses prefetched primary key values from sequence and passes them to connection adapter insert method
+    if current_adapter?(:OracleAdapter)
+      sequence_name = "accounts_seq"
+      id_value = @connection.next_sequence_value(sequence_name)
+      id = @connection.insert("INSERT INTO accounts (id, firm_id,credit_limit) VALUES (accounts_seq.nextval,42,5000)", nil, :id, id_value, sequence_name)
+    else
+      id = @connection.insert("INSERT INTO accounts (firm_id,credit_limit) VALUES (42,5000)")
+    end
     assert_not_nil id
   end
 end