From 494647b0b134991a45577526ff5e05b47d716a13 Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Mon, 29 May 2023 11:39:15 +0800
Subject: [PATCH] Synchronization code

---
 .../SqlSugar/Entities/DefaultCustom.cs          | 17 +++++++++++++++++
 .../ExpressionsToSql/Common/SugarParameter.cs   |  1 +
 .../Realization/Oracle/OracleProvider.cs        |  7 ++++++-
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/Src/Asp.NetCore2/SqlSugar/Entities/DefaultCustom.cs b/Src/Asp.NetCore2/SqlSugar/Entities/DefaultCustom.cs
index ba247b3b1..a7dada438 100644
--- a/Src/Asp.NetCore2/SqlSugar/Entities/DefaultCustom.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Entities/DefaultCustom.cs
@@ -85,4 +85,21 @@ namespace SqlSugar.DbConvert
             return (T)(object)value;
         }
     }
+
+    public class NClobPropertyConvert : ISugarDataConverter
+    {
+        public SugarParameter ParameterConverter<T>(object columnValue, int columnIndex)
+        {
+            var name = "@Common" + columnIndex;
+            Type undertype = SqlSugar.UtilMethods.GetUnderType(typeof(T));//获取没有nullable的枚举类型
+            return new SugarParameter(name, columnValue, undertype) { IsNClob = true };
+        }
+
+        public T QueryConverter<T>(IDataRecord dr, int i)
+        {
+
+            var value = dr.GetString(i);
+            return (T)(object)value;
+        }
+    }
 }
diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
index 6184aade5..046f02c36 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Common/SugarParameter.cs
@@ -11,6 +11,7 @@ namespace SqlSugar
     {
         public bool IsRefCursor { get; set; }
         public bool IsClob { get; set; }
+        public bool IsNClob { get; set; }
         public bool IsNvarchar2 { get; set; }
         public SugarParameter(string name, object value)
         {
diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/OracleProvider.cs b/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/OracleProvider.cs
index 697dc3adc..d6991b1dd 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/OracleProvider.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/OracleProvider.cs
@@ -219,6 +219,11 @@ namespace SqlSugar
                     sqlParameter.OracleDbType = OracleDbType.Clob;
                     sqlParameter.Value = parameter.Value;
                 }
+                if (parameter.IsNClob)
+                {
+                    sqlParameter.OracleDbType = OracleDbType.NClob;
+                    sqlParameter.Value = parameter.Value;
+                }
                 if (parameter.IsArray)
                 {
                     sqlParameter.OracleDbType = OracleDbType.Varchar2;
@@ -287,7 +292,7 @@ namespace SqlSugar
                 if (isVarchar && sqlParameter.DbType == System.Data.DbType.String)
                 {
                     sqlParameter.DbType = System.Data.DbType.AnsiString;
-                }
+                } 
                 ++index;
             }
             return result;