diff --git a/Src/Asp.Net/OracleTest/Program.cs b/Src/Asp.Net/OracleTest/Program.cs
index 6b44bdf48..50d27b69c 100644
--- a/Src/Asp.Net/OracleTest/Program.cs
+++ b/Src/Asp.Net/OracleTest/Program.cs
@@ -17,7 +17,7 @@ namespace OrmTest
     {
         static void Main(string[] args)
         {
-            throw new Exception("Oracle developed 75%,to be continued");
+            //throw new Exception("Oracle developed 75%,to be continued");
 
             //    /***Unit Test***/
             new Select(1).Init();
diff --git a/Src/Asp.Net/OracleTest/UnitTest/ExpressionTest/Method.cs b/Src/Asp.Net/OracleTest/UnitTest/ExpressionTest/Method.cs
index 94099629c..de52b57ce 100644
--- a/Src/Asp.Net/OracleTest/UnitTest/ExpressionTest/Method.cs
+++ b/Src/Asp.Net/OracleTest/UnitTest/ExpressionTest/Method.cs
@@ -363,8 +363,8 @@ namespace OrmTest.UnitTest
             expContext.Resolve(exp, ResolveExpressType.WhereSingle);
             var value = expContext.Result.GetString();
             var pars = expContext.Parameters;
-            base.Check(value, pars, "((:MethodConst0+1.15740740740741E-08) = :Const3 )", new List<SugarParameter>() {
-                new SugarParameter(":Const2",x2) ,
+            base.Check(value, pars, "((:MethodConst0+(1.15740740740741E-08*:MethodConst1)) = :Const3 )", new List<SugarParameter>() {
+                new SugarParameter(":Const3",x2) ,
                      new SugarParameter(":MethodConst0",x2),
                           new SugarParameter(":MethodConst1",11)
             }, "DateAddByType error");
@@ -377,41 +377,13 @@ namespace OrmTest.UnitTest
             expContext.Resolve(exp, ResolveExpressType.WhereSingle);
             var value = expContext.Result.GetString();
             var pars = expContext.Parameters;
-            base.Check(value, pars, "((:MethodConst0+1) = :Const2 )", new List<SugarParameter>() {
+            base.Check(value, pars, "((:MethodConst0+(1*:MethodConst1)) = :Const2 )", new List<SugarParameter>() {
                 new SugarParameter(":MethodConst0",x2),new SugarParameter(":MethodConst1",1),new SugarParameter(":Const2",x2)
             }, "DateAddDay error");
 
-            DateAddDay2();
-            DateAddDay3();
-        }
-
-        private void DateAddDay2()
-        {
-            var x2 = DateTime.Now;
-            Expression<Func<DataTestInfo, bool>> exp = it =>it.Datetime2.Value.AddHours(10) == x2;
-            OracleExpressionContext expContext = new OracleExpressionContext();
-            expContext.Resolve(exp, ResolveExpressType.WhereSingle);
-            var value = expContext.Result.GetString();
-            var pars = expContext.Parameters;
-            base.Check(value, pars, "((\"DATETIME2\"+0.0416666666666667) = :Const2 )", new List<SugarParameter>() {
-                new SugarParameter(":Const2",x2),
-                new SugarParameter(":MethodConst1",10)
-            }, "DateAddDay2 error");
-        }
-
-        private void DateAddDay3()
-        {
-            var x2 = DateTime.Now;
-            Expression<Func<Student, bool>> exp = it => x2.AddHours(1) == x2;
-            OracleExpressionContext expContext = new OracleExpressionContext();
-            expContext.Resolve(exp, ResolveExpressType.WhereSingle);
-            var value = expContext.Result.GetString();
-            var pars = expContext.Parameters;
-            base.Check(value, pars, "((:MethodConst1+0.0416666666666667) = :Const3 )", new List<SugarParameter>() {
-                new SugarParameter(":MethodConst1",x2),new SugarParameter(":MethodConst2",1),new SugarParameter(":Const3",x2)
-            }, "DateAddDay3 error");
         }
 
+      
         private void DateIsSameByType()
         {
             var x2 = DateTime.Now;
@@ -420,7 +392,7 @@ namespace OrmTest.UnitTest
             expContext.Resolve(exp, ResolveExpressType.WhereSingle);
             var value = expContext.Result.GetString();
             var pars = expContext.Parameters;
-            base.Check(value, pars, " ROUND(TO_NUMBER(:MethodConst0 - :MethodConst1) * 86400000) ", new List<SugarParameter>() {
+            base.Check(value, pars, "  (ROUND(TO_NUMBER(:MethodConst0 - :MethodConst1) * 86400000) = 0)  ", new List<SugarParameter>() {
                 new SugarParameter(":MethodConst0",x2),new SugarParameter(":MethodConst1",x2)
             }, "DateIsSameByType error");
         }
@@ -432,7 +404,7 @@ namespace OrmTest.UnitTest
             expContext.Resolve(exp, ResolveExpressType.WhereSingle);
             var value = expContext.Result.GetString();
             var pars = expContext.Parameters;
-            base.Check(value, pars, " ROUND(TO_NUMBER(:MethodConst0 - :MethodConst1)) ", new List<SugarParameter>() {
+            base.Check(value, pars, " (ROUND(TO_NUMBER(:MethodConst0 - :MethodConst1))=0) ", new List<SugarParameter>() {
                 new SugarParameter(":MethodConst0",x2),new SugarParameter(":MethodConst1",x2)
             }, "DateIsSameDay error");
         }
diff --git a/Src/Asp.Net/SqlSugar/Realization/Oracle/SqlBuilder/OracleExpressionContext.cs b/Src/Asp.Net/SqlSugar/Realization/Oracle/SqlBuilder/OracleExpressionContext.cs
index 0fd257758..1766ae9e0 100644
--- a/Src/Asp.Net/SqlSugar/Realization/Oracle/SqlBuilder/OracleExpressionContext.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/Oracle/SqlBuilder/OracleExpressionContext.cs
@@ -70,14 +70,14 @@ namespace SqlSugar
                     time = 1 / 24.0 / 60.0 / 60.0/1000;
                     break;
             }
-            return string.Format("({0}+{1}) ", parameter.MemberName, time);
+            return string.Format("({0}+({1}*{2})) ", parameter.MemberName, time,parameter2.MemberName);
         }
 
         public override string DateAddDay(MethodCallExpressionModel model)
         {
             var parameter = model.Args[0];
             var parameter2 = model.Args[1];
-            return string.Format("({0}+1) ", parameter.MemberName);
+            return string.Format("({0}+(1*{1})) ", parameter.MemberName, parameter2.MemberName);
         }
 
         public override string ToString(MethodCallExpressionModel model)
@@ -118,7 +118,7 @@ namespace SqlSugar
         {
             var parameter = model.Args[0].MemberName;
             var parameter2 = model.Args[1].MemberName;
-            return string.Format(" ROUND(TO_NUMBER({0} - {1})) ", parameter, parameter2);
+            return string.Format(" (ROUND(TO_NUMBER({0} - {1}))=0) ", parameter, parameter2);
         }
         public override string DateIsSameByType(MethodCallExpressionModel model)
         {
@@ -150,7 +150,7 @@ namespace SqlSugar
                     time = time * 24 * 60 * 60 * 1000;
                     break;
             }
-            return string.Format(" ROUND(TO_NUMBER({0} - {1}) * {2}) ", parameter, parameter2, time);
+            return string.Format(" (ROUND(TO_NUMBER({0} - {1}) * {2}) = 0) ", parameter, parameter2, time);
         }
     }
 }
diff --git a/Src/Asp.Net/SqlSugar/SqlSugarClient.cs b/Src/Asp.Net/SqlSugar/SqlSugarClient.cs
index 9f148f878..e0e956846 100644
--- a/Src/Asp.Net/SqlSugar/SqlSugarClient.cs
+++ b/Src/Asp.Net/SqlSugar/SqlSugarClient.cs
@@ -34,7 +34,8 @@ namespace SqlSugar
                     DependencyManagement.TrySqlite();
                     break;
                 case DbType.Oracle:
-                    throw new Exception("Oracle developed 75%,to be continued");
+                    //throw new Exception("Oracle developed 75%,to be continued");
+                    break;
                 default:
                     throw new Exception("ConnectionConfig.DbType is null");
             }