This document discusses using Qt for SQL database access and modeling. It describes how QSqlDatabase provides an interface for database connections, and drivers like QODBC can be used for specific databases like SQL Server. It also covers executing queries with QSqlQuery, retrieving result sets, and using QSqlTableModel to present database contents in a view like QListView for CRUD operations. Record-level access and filtering are demonstrated.

1. QT

2. .pro SQL 

3. QT 
QSqlDatabase 

QODBC
SQL Server
microsoft

4. 
QSqlDatabase 
password hostName, databaseName, userName, 


5. SQL Server UDB 
DatabaseName Connection String 



6. QSqlQuery 
QSqlQuery exec 
lastError 
QSqlRecord 
count 
fieldName(int) 

7. 

next 
value(int) 
NULL 
Qvariant 


8. preparation 
QT SQL 
Floating point 
preparation 
false syntax 
exec connection 

9. placeholder 
bind Value(QString,QVariant) 
placeholder
QSqlQuery query;
query.prepare("INSERT INTO Course (id, title, year) "
"VALUES (:id, :title, :year)");
query.bindValue(":id", 203);
query.bindValue(":title", "Living in America");
query.bindValue(":year", 2002);
query.exec(); 

10. Data Model 
Data Model 
QtSql QSqlTableModel
SQL 
(SELECT, INSERT, UPDATE, DELETE)
QListView GUI 
QTableView
Consol Application

11. Model.setTable(“ ”) From
Model.setFilter(“ “) Where
Model.select(“ “) select
Select *
From Student
Where Major = „Computer Science‟

12. 
QSqlTableModel::record()
value() 

13.  1.Foundation Of
Qt Development

14.  2.C++ GUI Programming
with Qt 4, Second Edition