diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
index 15c911db9..7cfbacad8 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
@@ -557,9 +557,9 @@ namespace SqlSugar
                 string sql = sqlObj.Key;
                 UtilMethods.RepairReplicationParameters(ref sql, sqlObj.Value.ToArray(), i, "Union");
                 if (sqlObj.Value.HasValue())
-                    allItems.Add(new KeyValuePair<string, List<SugarParameter>>(sql, sqlObj.Value));
+                    allItems.Add(new KeyValuePair<string, List<SugarParameter>>($" ( {sql} ) ", sqlObj.Value));
                 else
-                    allItems.Add(new KeyValuePair<string, List<SugarParameter>>(sql, new List<SugarParameter>()));
+                    allItems.Add(new KeyValuePair<string, List<SugarParameter>>($" ( {sql} ) ", new List<SugarParameter>()));
                 i++;
             }
             var allSql = sqlBuilder.GetUnionSql(allItems.Select(it => it.Key).ToList());
@@ -1023,10 +1023,10 @@ namespace SqlSugar
         {
             try
             {
-                if (this.CurrentConnectionConfig.DbType == DbType.Oracle)
-                {
-                    throw new Exception("Oracle no support SaveQueues");
-                }
+                //if (this.CurrentConnectionConfig.DbType == DbType.Oracle)
+                //{
+                //    throw new Exception("Oracle no support SaveQueues");
+                //}
                 if (this.Queues == null || this.Queues.Count == 0) return default(T);
                 isTran = isTran && this.Ado.Transaction == null;
                 if (isTran) this.Ado.BeginTran();
diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/SqlBuilder/OracleInsertBuilder.cs b/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/SqlBuilder/OracleInsertBuilder.cs
index d11af9d7e..9204ecd93 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/SqlBuilder/OracleInsertBuilder.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/SqlBuilder/OracleInsertBuilder.cs
@@ -142,7 +142,14 @@ namespace SqlSugar
                 }
                 else if (type == UtilConstants.StringType || type == UtilConstants.ObjType)
                 {
-                    return N + "'" + value.ToString().ToSqlFilter() + "'";
+                    if (value.ToString().Length > 2000)
+                    {
+                        return   "to_clob('" + value.ToString().ToSqlFilter() + "')";
+                    }
+                    else
+                    {
+                        return N + "'" + value.ToString().ToSqlFilter() + "'";
+                    }
                 }
                 else
                 {