問題描述

我在添加數據庫時遇到了一些麻煩.

 _dataBase = QSqlDatabase::addDatabase("QPSQL");

調用此方法后出現錯誤:

QSqlDatabase:未加載 QPSQL 驅動程序QSqlDatabase:可用驅動程序:QSQLITE QMYSQL QMYSQL3 QODBC QODBC3 QPSQL QPSQL7

我包括到 PATH 變量路徑:

PostgreSQL9.3inPostgreSQL9.3libPostgreSQL9.3包括

我也將文件夾 sqldrivers 復制到 Debug 文件夾.還嘗試將此文件夾中的 dll 復制到 Debug.也不行.

我來這里谷歌搜索是因為我在 Windows 中遇到了同樣的問題.

就我而言，為了解決這個問題，我必須為 Windows 32 位安裝 PostgreSQL，因為我的 Qt 目標是 MinGW 32 位.

此外，我必須將 PATH 添加到 PostgreSQL bin 和 lib 目錄中，以便 Qt 可以找到正確的 .dlls.

@SET PATH=C:Program Files (x86)PostgreSQL9.6in;C:Program Files (x86)PostgreSQL9.6lib;%PATH%

PATH 可以在啟動 Qt Creator 之前設置，也可以通過 Projects 窗格中的 Build Environment 使用 Qt Creator 本身.>

I have some trouble when I want to add a database.

    _dataBase = QSqlDatabase::addDatabase("QPSQL");

After calling this method I have an error:

QSqlDatabase: QPSQL driver not loaded
QSqlDatabase: available drivers: QSQLITE QMYSQL QMYSQL3 QODBC QODBC3 QPSQL QPSQL7

I include to PATH variable paths to:

PostgreSQL9.3in
PostgreSQL9.3lib
PostgreSQL9.3include

Also I copy folder sqldrivers to Debug folder. Also tried to copy dlls drom this folder to Debug. Doesn't work either.

I came here googling because I had the same problem in Windows.

In my case to solve the issue I had to install PostgreSQL for Windows 32 bits since my Qt target was MinGW 32 bits.

Additionally, I had to add the PATH to the PostgreSQL bin and lib directories so Qt could find the right .dlls.

@SET PATH=C:Program Files (x86)PostgreSQL9.6in;C:Program Files (x86)PostgreSQL9.6lib;%PATH%

The PATH can be set before launching Qt Creator or using the Qt Creator itself via the Build Environment in the Projects pane.

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