var result = db.Updateable(updateObj)

.PageSize(1).EnableFilter().ExecuteCommand()

Src/Asp.NetCore2/SqlSugar/Abstract/SqlBuilderProvider/UpdateBuilder.cs

@@ -26,6 +26,7 @@ namespace SqlSugar
         public string TableWithString { get; set; }
         public List<DbColumnInfo> DbColumnInfoList { get; set; }
         public List<string> WhereValues { get; set; }
+        public string AppendWhere { get; set; }
         public List<KeyValuePair<string, string>> SetValues { get; set; }
         public bool IsNoUpdateNull { get; set; }
         public bool IsNoUpdateDefaultValue { get; set; }

Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableFilter.cs

@@ -0,0 +1,105 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SqlSugar
+{
+    public class UpdateableFilter<T> where T : class, new()
+    {
+        public T[] DataList { get; set; }
+        public SqlSugarProvider Context { get; set; }
+        public int PageSize { get; internal set; }
+        public string TableName { get; internal set; }
+        public bool IsEnableDiffLogEvent { get; internal set; }
+        public DiffLogModel DiffModel { get; internal set; }
+        public List<string> UpdateColumns { get; internal set; }
+        public int ExecuteCommand()
+        {
+            if (DataList.Count() == 1 && DataList.First() == null)
+            {
+                return 0;
+            }
+            PageSize = 1;
+            var result = 0;
+            var isNoTran = this.Context.Ado.IsNoTran();
+            try
+            {
+                if (isNoTran)
+                {
+                    this.Context.Ado.BeginTran();
+                }
+                this.Context.Utilities.PageEach(DataList, PageSize, pageItem =>
+                {
+                    result += SetFilterSql(this.Context.Updateable(pageItem.First()).AS(TableName).EnableDiffLogEventIF(IsEnableDiffLogEvent, DiffModel).UpdateColumns(UpdateColumns.ToArray())).ExecuteCommand();
+                });
+                if (isNoTran)
+                {
+                    this.Context.Ado.CommitTran();
+                }
+            }
+            catch (Exception)
+            {
+                if (isNoTran)
+                {
+                    this.Context.Ado.RollbackTran();
+                }
+                throw;
+            }
+            return result;
+        }
+
+
+
+        public async Task<int> ExecuteCommandAsync()
+        {
+            if (DataList.Count() == 1 && DataList.First() == null)
+            {
+                return 0;
+            }
+            PageSize = 1;
+            var result = 0;
+            var isNoTran = this.Context.Ado.IsNoTran();
+            try
+            {
+                if (isNoTran)
+                {
+                    await this.Context.Ado.BeginTranAsync();
+                }
+                await this.Context.Utilities.PageEachAsync(DataList, PageSize, async pageItem =>
+                {
+                    result += await SetFilterSql(this.Context.Updateable(pageItem.First()).AS(TableName).EnableDiffLogEventIF(IsEnableDiffLogEvent, DiffModel).UpdateColumns(UpdateColumns.ToArray())).ExecuteCommandAsync();
+                });
+                if (isNoTran)
+                {
+                    await this.Context.Ado.CommitTranAsync();
+                }
+            }
+            catch (Exception)
+            {
+                if (isNoTran)
+                {
+                    await this.Context.Ado.RollbackTranAsync();
+                }
+                throw;
+            }
+            return result;
+        }
+
+
+        private IUpdateable<T> SetFilterSql(IUpdateable<T> updateable)
+        {
+            var queryable = this.Context.Queryable<T>();
+            queryable.QueryBuilder.LambdaExpressions.ParameterIndex = 10000;
+            var sqlobj=queryable.ToSql();
+            var sql= UtilMethods.RemoveBeforeFirstWhere(sqlobj.Key);
+            updateable.UpdateBuilder.AppendWhere = sql;
+            if (sqlobj.Value != null) 
+            {
+                updateable.UpdateBuilder.Parameters.AddRange(sqlobj.Value);
+            }
+            return updateable;
+        }
+    }
+}

Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateablePage.cs

@@ -15,6 +15,20 @@ namespace SqlSugar
         public bool IsEnableDiffLogEvent { get; internal set; }
         public DiffLogModel DiffModel { get; internal set; }
         public List<string> UpdateColumns { get; internal set; }
+
+        public UpdateableFilter<T> EnableFilter() 
+        {
+            return new UpdateableFilter<T>()
+            {
+                 Context= Context,
+                  DataList= DataList,
+                   DiffModel= DiffModel,
+                    IsEnableDiffLogEvent= IsEnableDiffLogEvent,
+                     PageSize=PageSize,
+                      TableName=TableName,
+                       UpdateColumns=UpdateColumns
+            };
+        }
         public int ExecuteCommand()
         {
             if (DataList.Count() == 1 && DataList.First() == null)

Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs

@@ -104,6 +104,10 @@ namespace SqlSugar
                 return trakRows;
             }
             string sql = _ExecuteCommand();
+            if (this.UpdateBuilder.AppendWhere.HasValue()) 
+            {
+                sql += " AND "+ this.UpdateBuilder.AppendWhere;
+            }
             if (string.IsNullOrEmpty(sql))
             {
                 return 0;