Add MoreSetting.OracleDisableNvarchar

Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs

@@ -323,6 +323,15 @@ namespace SqlSugar
         #endregion
 
         #region Private methods
+        internal string GetN()
+        {
+            var N = "N";
+            if (_Context.CurrentConnectionConfig.MoreSettings != null && _Context.CurrentConnectionConfig.MoreSettings.OracleDisableNvarchar)
+            {
+                N = "";
+            }
+            return N;
+        }
         private static void CheckDbDependency(ConnectionConfig config)
         {
             switch (config.DbType)

Src/Asp.Net/SqlSugar/Entities/ConnMoreSettings.cs

@@ -10,9 +10,14 @@ namespace SqlSugar
         public bool IsAutoRemoveDataCache { get; set; }
         public bool IsWithNoLockQuery { get; set; }
         /// <summary>
-        /// Some MYSQL databases do not support NVarchar set true
+        /// Some MYSQL databases do not support Nvarchar set true
         /// </summary>
-        public bool MySqlDisableNarvchar { get; set; }
+        public bool MySqlDisableNvarchar { get; set; }
+
+        /// <summary>
+        ///Oracle nvarchar partial operation disabled
+        /// </summary>
+        public bool OracleDisableNvarchar { get; set; }
         public bool PgSqlIsAutoToLower = true;
         public int DefaultCacheDurationInSeconds { get; set; }
     }

Src/Asp.Net/SqlSugar/Realization/Oracle/SqlBuilder/OracleInsertBuilder.cs

@@ -107,6 +107,7 @@ namespace SqlSugar
             }
             else
             {
+                string N = this.Context.GetN();
                 var type = UtilMethods.GetUnderType(value.GetType());
                 if (type == UtilConstants.StringType && value.ToString().Contains("{SugarSeq:=}"))
                 {
@@ -136,11 +137,11 @@ namespace SqlSugar
                 }
                 else if (type == UtilConstants.StringType || type == UtilConstants.ObjType)
                 {
-                    return "N'" + value.ToString().ToSqlFilter() + "'";
+                    return N+"'" + value.ToString().ToSqlFilter() + "'";
                 }
                 else
                 {
-                    return "N'" + value.ToString() + "'";
+                    return N+"'" + value.ToString() + "'";
                 }
             }
         }

Src/Asp.Net/SqlSugar/Realization/Oracle/SqlBuilder/OracleUpdateBuilder.cs

@@ -44,6 +44,7 @@ namespace SqlSugar
             }
             else
             {
+                string N =this.Context.GetN();
                 var type = UtilMethods.GetUnderType(value.GetType());
                 if (type == UtilConstants.DateType)
                 {
@@ -69,11 +70,11 @@ namespace SqlSugar
                 }
                 else if (type == UtilConstants.StringType || type == UtilConstants.ObjType)
                 {
-                    return "N'" + value.ToString().ToSqlFilter() + "'";
+                    return N + "'" + value.ToString().ToSqlFilter() + "'";
                 }
                 else
                 {
-                    return "N'" + value.ToString() + "'";
+                    return N + "'" + value.ToString() + "'";
                 }
             }
         }