Qt SQL

The Qt SQL module provides support for SQL databases. Qt SQL's APIs are divided into different layers:

驱动层
SQL API 层
用户界面层

The SQL 编程指南包含使用 Qt SQL 进行开发的有关信息。

使用模块

Using a Qt module's C++ API requires linking against the module library, either directly or through other dependencies. Several build tools have dedicated support for this, including CMake and qmake .

构建采用 CMake

使用 find_package() command to locate the needed module component in the Qt6 包：

find_package(Qt6 REQUIRED COMPONENTS Sql)
target_link_libraries(mytarget PRIVATE Qt6::Sql)

更多细节，见构建采用 CMake 概述。

采用 qmake 构建

To configure the module for building with qmake, add the module as a value of the QT variable in the project's .pro file:

QT += sql

文章和指南

Qt SQL Programming Guide

范例

SQL 范例

参考

C++ 类

Module Evolution

Changes to Qt SQL lists important changes in the module API and functionality that were done for the Qt 6 series of Qt.

许可和归属

Qt SQL 在商业许可下是可用的来自 Qt 公司 . In addition, it is available under free software licenses: The GNU LGPL (次一般公共许可) 第 3 版，或 GNU GPL (一般公共许可) 第 2 版。见 Qt 许可进一步了解细节。

Furthermore, Qt SQL in Qt 6.5.1 may contain third party modules under following permissive licenses:

SQLite, version 3.42.0

公共领域