diff --git a/SIM_System.pro.user b/SIM_System.pro.user
index 7494150..1457596 100644
--- a/SIM_System.pro.user
+++ b/SIM_System.pro.user
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.11.0, 2020-12-26T13:07:37. -->
+<!-- Written by QtCreator 4.11.0, 2020-12-26T15:15:42. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>
diff --git a/addstuwidget.cpp b/addstuwidget.cpp
index 051c48a..d29cb52 100644
--- a/addstuwidget.cpp
+++ b/addstuwidget.cpp
@@ -68,7 +68,13 @@ void AddStuWidget::on_ConfirmButton_clicked()
     query.exec("insert into Student values('"+info.at(0)+"','"+info.at(1)+"','"+info.at(2)+"','"+info.at(3)+"','"+info.at(4)+"')");
     if(query.lastError().type()==QSqlError::NoError){
         QStringList sqls;
-        sqls<<"create login S"+info.at(0)+" with password='123456', default_database=E_Chain";
+        QString res;
+        QSqlQuery query1,query2;
+        query1.exec("create login S"+info.at(0)+" with password='123456', default_database=E_Chain");
+        query2.exec("create login S"+info.at(0)+" with password='123456', default_database=E_Chain_Database");
+        if(query1.lastError().type()!=QSqlError::NoError && query2.lastError().type()!=QSqlError::NoError){
+            res+=query1.lastError().text()+"\n"+query2.lastError().text();
+        }
         sqls<<"create user S"+info.at(0)+" for login S"+info.at(0)+" with default_schema=dbo";
         sqls<<"CREATE VIEW S"+info.at(0)+"_Info AS SELECT Sno , Sname, Ssex, Sdept, Sgrade FROM Student WHERE Sno='"+info.at(0)+"'";
         sqls<<"GRANT SELECT ON S"+info.at(0)+"_Info TO S"+info.at(0);
@@ -94,7 +100,7 @@ void AddStuWidget::on_ConfirmButton_clicked()
         sqls<<"CREATE VIEW S"+info.at(0)+"_Scho AS SELECT Scholarship, Reason, Response FROM ScholarAppli WHERE Sno='"+info.at(0)+"'";
         sqls<<"GRANT SELECT, UPDATE(Scholarship, Reason),INSERT ON S"+info.at(0)+"_Scho TO S"+info.at(0);
 
-        QString res;
+
         for(int i=0;i<sqls.size();i++){
             query.exec(sqls.at(i));
             if(query.lastError().type()==QSqlError::NoError){
diff --git a/addteacherwidget.cpp b/addteacherwidget.cpp
index d116604..073ed7d 100644
--- a/addteacherwidget.cpp
+++ b/addteacherwidget.cpp
@@ -47,7 +47,13 @@ void AddTeacherWidget::on_ConfirmButton_clicked()
             if(query.lastError().type()==QSqlError::NoError){
                 QSqlQuery query2;
                 QStringList sqls;
-                sqls<<"create login T"+tno+" with password='123456', default_database=E_Chain;";
+                QString res;
+                QSqlQuery query3,query4;
+                query3.exec("create login T"+tno+" with password='123456', default_database=E_Chain;");
+                query4.exec("create login T"+tno+" with password='123456', default_database=E_Chain_Database;");
+                if(query3.lastError().type()!=QSqlError::NoError && query4.lastError().type()!=QSqlError::NoError){
+                    res+=query3.lastError().text()+"\n"+query4.lastError().text();
+                }
                 sqls<<"create user T"+tno+" for login T"+tno+" with default_schema=dbo";
                 sqls<<"GRANT SELECT ON CourseBasic TO T"+tno+"";
                 sqls<<"GRANT SELECT ON CTime TO T"+tno+"";
@@ -67,8 +73,6 @@ void AddTeacherWidget::on_ConfirmButton_clicked()
                 sqls<<"CREATE VIEW T"+tno+"_TP AS SELECT Sno, ProjectName, Reason, Response FROM ProjectAppli, ProjectLst WHERE ProjectLst.Tno='"+tno+"' AND ProjectAppli.ProjectName=ProjectLst.ProgramName";
                 sqls<<"GRANT SELECT, UPDATE(Response) ON T"+tno+"_TP TO T"+tno+"";
 
-
-                QString res;
                 for(int i=0;i<sqls.size();i++){
                     query2.exec(sqls.at(i));
                     if(query2.lastError().type()!=QSqlError::NoError){