diff --git a/src/dbup-oracle/OracleConnectionManager.cs b/src/dbup-oracle/OracleConnectionManager.cs
index fbb8e33..ac2196a 100644
--- a/src/dbup-oracle/OracleConnectionManager.cs
+++ b/src/dbup-oracle/OracleConnectionManager.cs
@@ -12,6 +12,8 @@ public class OracleConnectionManager : DatabaseConnectionManager
     {
         private readonly OracleCommandSplitter commandSplitter;
 
+        protected override string GetDummyQuery() => "select 1 from dual";
+
         /// <summary>
         /// Creates a new Oracle database connection manager.
         /// </summary>