diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs
index c0788e919..a9012d57b 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs
@@ -676,7 +676,7 @@ namespace SqlSugar
             if (this.UpdateParameterIsNull)
             {
                 var whereSql = Regex.Replace(sql, ".* WHERE ", "", RegexOptions.Singleline);
-                if (sql.Contains("WHERE (EXISTS"))
+                if (IsExists(sql))
                 {
                     whereSql = Regex.Match(sql, @"\(EXISTS.+").Value;
                 }
@@ -718,6 +718,11 @@ namespace SqlSugar
             return result;
         }
 
+        private static bool IsExists(string sql)
+        {
+            return sql.Contains("WHERE (EXISTS") || sql.Contains("((EXISTS (");
+        }
+
         private void ThrowUpdateByExpression()
         {
             Check.Exception(UpdateParameterIsNull == true, ErrorMessage.GetThrowMessage(" no support UpdateColumns and WhereColumns", "根据表达式更新 db.Updateable<T>() 禁止使用 UpdateColumns和WhereColumns,你可以使用 SetColumns Where 等。更新分为2种方式 1.根据表达式更新 2.根据实体或者集合更新， 具体用法请查看文档 "));