diff --git a/FreeSql.Tests/FreeSql.Tests/UnitTest1.cs b/FreeSql.Tests/FreeSql.Tests/UnitTest1.cs
index 29a072ab..2d38490e 100644
--- a/FreeSql.Tests/FreeSql.Tests/UnitTest1.cs
+++ b/FreeSql.Tests/FreeSql.Tests/UnitTest1.cs
@@ -341,6 +341,9 @@ namespace FreeSql.Tests
         [Fact]
         public void Test1()
         {
+            var kfkfjdfg = g.oracle.Select<Templates>().Where(a => (DateTime.Now - a.EditTime).TotalMinutes > 100).ToSql();
+
+
             g.oracle.Aop.SyncStructureAfter += (s, e) => 
                 Trace.WriteLine(e.Sql);
 
diff --git a/Providers/FreeSql.Provider.Oracle/OracleExpression.cs b/Providers/FreeSql.Provider.Oracle/OracleExpression.cs
index e4752a68..3dee8d3f 100644
--- a/Providers/FreeSql.Provider.Oracle/OracleExpression.cs
+++ b/Providers/FreeSql.Provider.Oracle/OracleExpression.cs
@@ -378,7 +378,7 @@ namespace FreeSql.Oracle
                     case "Subtract":
                         switch ((exp.Arguments[0].Type.IsNullableType() ? exp.Arguments[0].Type.GenericTypeArguments.FirstOrDefault() : exp.Arguments[0].Type).FullName)
                         {
-                            case "System.DateTime": return $"({args1}-{left})";
+                            case "System.DateTime": return $"numtodsinterval(({left}+0)-({args1}+0),'day')";
                             case "System.TimeSpan": return $"({left}-{args1})";
                         }
                         break;