Update oracle max length

Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs

@@ -631,7 +631,14 @@ namespace SqlSugar
             {
                 var sqlObj = item.ToSql();
                 string sql = sqlObj.Key;
-                UtilMethods.RepairReplicationParameters(ref sql, sqlObj.Value.ToArray(), i, "UnionAll");
+                if (this.CurrentConnectionConfig?.MoreSettings?.MaxParameterNameLength > 0)
+                {
+                    UtilMethods.RepairReplicationParameters(this.Context,ref sql, sqlObj.Value.ToArray(), i, "UnionAll");
+                }
+                else
+                {
+                    UtilMethods.RepairReplicationParameters(ref sql, sqlObj.Value.ToArray(), i, "UnionAll");
+                }
                 if (sqlObj.Value.HasValue())
                     allItems.Add(new KeyValuePair<string, List<SugarParameter>>(sqlBuilder.GetUnionFomatSql(sql), sqlObj.Value));
                 else
@@ -668,7 +675,14 @@ namespace SqlSugar
                 item.QueryBuilder.DisableTop = true;
                 var sqlObj = item.ToSql();
                 string sql = sqlObj.Key;
-                UtilMethods.RepairReplicationParameters(ref sql, sqlObj.Value.ToArray(), i, "Union");
+                if (this.CurrentConnectionConfig?.MoreSettings?.MaxParameterNameLength > 0)
+                {
+                    UtilMethods.RepairReplicationParameters(this.Context, ref sql, sqlObj.Value.ToArray(), i, "Union");
+                }
+                else
+                {
+                    UtilMethods.RepairReplicationParameters(ref sql, sqlObj.Value.ToArray(), i, "Union");
+                }
                 if (sqlObj.Value.HasValue())
                     allItems.Add(new KeyValuePair<string, List<SugarParameter>>(sqlBuilder.GetUnionFomatSql(sql), sqlObj.Value));
                 else

Src/Asp.NetCore2/SqlSugar/Utilities/CommonExtensions.cs

@@ -11,6 +11,31 @@ namespace SqlSugar
 {
     public static class CommonExtensions
     {
+        public static string SafeSubstring(this string str, int startIndex, int length)
+        {
+            if (str == null)
+            {
+                throw new ArgumentNullException(nameof(str));
+            }
+
+            if (startIndex < 0)
+            {
+                startIndex = 0;
+            }
+
+            if (startIndex >= str.Length)
+            {
+                return string.Empty; // 返回空字符串，因为起始索引超过字符串长度
+            }
+
+            if (length < 0)
+            {
+                length = 0;
+            }
+
+            // 截取字符串时，确保不超过字符串的长度
+            return str.Substring(startIndex, Math.Min(length, str.Length - startIndex));
+        }
         public static Dictionary<string, object> ToDictionary<T>(this List<T> list, string keyPropertyName, string valuePropertyName)
         {
             var keyProperty = typeof(T).GetProperty(keyPropertyName);

Src/Asp.NetCore2/SqlSugar/Utilities/UtilMethods.cs

@@ -809,6 +809,25 @@ namespace SqlSugar
                 }
             }
         }
+        internal static void RepairReplicationParameters(ISqlSugarClient db,ref string appendSql, SugarParameter[] parameters, int addIndex, string append = null)
+        {
+            if (appendSql.HasValue() && parameters.HasValue())
+            {
+                foreach (var parameter in parameters.OrderByDescending(it => it.ParameterName.Length))
+                {
+                    //Compatible with.NET CORE parameters case
+                    var name = parameter.ParameterName;
+                    string newName = name + append + addIndex;
+                    var maxLength = db.CurrentConnectionConfig.MoreSettings.MaxParameterNameLength;
+                    if (newName.Length > maxLength) 
+                    { 
+                          newName = name.SafeSubstring(0,20) + "_" + addIndex;
+                    }
+                    appendSql = ReplaceSqlParameter(appendSql, parameter, newName);
+                    parameter.ParameterName = newName;
+                }
+            }
+        }
 
         internal static string GetPackTable(string sql, string shortName)
         {