diff --git a/Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs b/Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs
index 54d14f4e8..845a454a8 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs
@@ -109,7 +109,10 @@ namespace SqlSugar
             string sql = this.CheckSystemTablePermissionsSql;
             try
             {
+                var oldIsEnableLog = this.Context.Ado.IsEnableLogEvent;
+                this.Context.Ado.IsEnableLogEvent = false;
                 this.Context.Ado.ExecuteCommand(sql);
+                this.Context.Ado.IsEnableLogEvent = oldIsEnableLog;
                 return true;
             }
             catch
diff --git a/Src/Asp.Net/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs b/Src/Asp.Net/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs
index 41f0b0c99..abe7c3011 100644
--- a/Src/Asp.Net/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/Sqlite/DbMaintenance/SqliteDbMaintenance.cs
@@ -39,14 +39,14 @@ namespace SqlSugar
         {
             get
             {
-                return "ALTER TABLE {0} ADD PRIMARY KEY({2}) /*{1}*/";
+                throw new NotSupportedException();
             }
         }
         protected override string AddColumnToTableSql
         {
             get
             {
-                return "ALTER TABLE {0} ADD {1} {2}{3} {4} {5} {6}";
+                throw new NotSupportedException();
             }
         }
         protected override string AlterColumnToTableSql
@@ -54,21 +54,21 @@ namespace SqlSugar
             get
             {
                 // return "ALTER TABLE {0} ALTER COLUMN {1} {2}{3} {4} {5} {6}";
-                return "alter table {0} change  column {1} {1} {2}{3} {4} {5} {6}";
+                throw new NotSupportedException();
             }
         }
         protected override string BackupDataBaseSql
         {
             get
             {
-                return "mysqldump.exe  {0} -uroot -p > {1}  ";
+                throw new NotSupportedException();
             }
         }
         protected override string CreateTableSql
         {
             get
             {
-                return "CREATE TABLE {0}(\r\n{1} $PrimaryKey)";
+                return "CREATE TABLE {0}(\r\n{1} )";
             }
         }
         protected override string CreateTableColumn
@@ -89,7 +89,7 @@ namespace SqlSugar
         {
             get
             {
-                return "SELECT  *　INTO {1} FROM  {2} limit 0,{0}";
+                throw new NotSupportedException();
             }
         }
         protected override string DropTableSql
@@ -103,7 +103,7 @@ namespace SqlSugar
         {
             get
             {
-                return "ALTER TABLE {0} DROP COLUMN {1}";
+                throw new NotSupportedException();
             }
         }
         protected override string DropConstraintSql
@@ -117,7 +117,7 @@ namespace SqlSugar
         {
             get
             {
-                return "exec sp_rename '{0}.{1}','{2}','column';";
+                throw new NotSupportedException();
             }
         }
         #endregion
@@ -137,7 +137,7 @@ namespace SqlSugar
         {
             get
             {
-                return "DEFAULT NULL";
+                return "NULL";
             }
         }
         protected override string CreateTableNotNull
@@ -158,7 +158,7 @@ namespace SqlSugar
         {
             get
             {
-