diff --git a/插件库/Lskj.Core/SqlHelper.cs b/插件库/Lskj.Core/SqlHelper.cs
index 691a4fa..84fa694 100644
--- a/插件库/Lskj.Core/SqlHelper.cs
+++ b/插件库/Lskj.Core/SqlHelper.cs
@@ -43,6 +43,12 @@ namespace Lskj.Core
         /// 请求超时时间
         /// </summary>
         public static int CommandTimeout;
+
+        /// <summary>
+        /// 上一次失败的sql
+        /// </summary>
+        public static string LastFailureSql;
+
         /// <summary>
         /// <para>说明：是否已经连接数据库</para>
         /// <para>创建者：朗速科技有限公司</para>
@@ -251,6 +257,7 @@ namespace Lskj.Core
         /// <returns>DataSet.</returns>
         public static DataSet ExecuteDataSet(CommandType cmdType, string cmdText, string tabName, params DbParameter[] commandParameters)
         {
+            LastFailureSql = string.Empty;
             DataSet set2;
             DbCommand cmd = dbFactory.CreateCommand();
             try
@@ -276,8 +283,10 @@ namespace Lskj.Core
                             sqlParameter.Value = resultTable.Rows[0][$"outputValue{i}"];
                         }
                     }
+                    if (returnValue + "" == "-1") LastFailureSql = cmd.CommandText;
                 }
                 //adapter.FillSchema(dataSet, SchemaType.Mapped, tabName);
+                
                 set2 = dataSet;
             }
             catch (Exception e)
@@ -339,6 +348,7 @@ namespace Lskj.Core
         /// <returns>DataSet.</returns>
         public static DataSet ExecuteDataSet(string procedureName, string tabName, string[] parameterNames, DbParameter[] parameterValues)
         {
+            LastFailureSql = string.Empty;
             DataSet set2;
             try
             {
@@ -375,6 +385,7 @@ namespace Lskj.Core
                             sqlParameter.Value = resultTable.Rows[0][$"outputValue{i}"];
                         }
                     }
+                    if (returnValue + "" == "-1") LastFailureSql = cmd.CommandText;
                 }
                 set2 = dataSet;
             }
@@ -398,6 +409,7 @@ namespace Lskj.Core
         /// <returns>System.Int32.</returns>
         public static int ExecuteNonQuery(CommandType cmdType, string cmdText, params DbParameter[] commandParameters)
         {
+            LastFailureSql = string.Empty;
             DbCommand cmd = dbFactory.CreateCommand();
             int num = 0;
             try
@@ -428,6 +440,7 @@ namespace Lskj.Core
                                     sqlParameter.Value = resultTable.Rows[0][$"outputValue{i}"];
                                 }
                             }
+                            if (returnValue + "" == "-1") LastFailureSql = cmd.CommandText;
                         }
                     }
                     else
@@ -476,6 +489,7 @@ namespace Lskj.Core
         /// <returns></returns>
         public static int ExecuteNonQuery(CommandType cmdType, string cmdText, DbTransaction Trans, int a, params DbParameter[] commandParameters)
         {
+            LastFailureSql = string.Empty;
             DbCommand cmd = dbFactory.CreateCommand();
             int num = 0;
             try
@@ -506,6 +520,7 @@ namespace Lskj.Core
                                     sqlParameter.Value = resultTable.Rows[0][$"outputValue{i}"];
                                 }
                             }
+                            if (returnValue + "" == "-1") LastFailureSql = cmd.CommandText;
                         }
                     }
                     else
@@ -746,7 +761,7 @@ namespace Lskj.Core
         /// <param name="cmdType">Type of the command.</param>
         /// <param name="cmdText">The command text.</param>
         /// <param name="cmdParms">The command parms.</param>
-        private static void PrepareCommand(DbCommand cmd, DbConnection Connection, DbTransaction trans, CommandType cmdType, string cmdText, DbParameter[] cmdParms)
+        public static void PrepareCommand(DbCommand cmd, DbConnection Connection, DbTransaction trans, CommandType cmdType, string cmdText, DbParameter[] cmdParms)
         {
             try
             {