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How to build universal MySQL driver for Qt 5.x.x on Windows using MSVC - Elnee blog

 

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Nov 20, Jan 1, You should prefer this method if module needs to set properties for the provided target libraries e. For example, you can do this as follows, to locate MySQL:. Note: If something goes wrong and you want CMake to recheck your available drivers, you might need to remove CMakeCache.

Note: As mentioned in Compile Qt with a specific driver , if the driver could not be found or is not enabled, start over by removing CMakeCache. Due to the practicalities of dealing with external dependencies, only the SQLite plugin is shipped with binary builds of Qt.

Note that it is not possible to configure each driver separately, only all of them at once. Drivers can be built separately, though. Note: outval1 and outval2 are variables local to the current connection and will not be affected by queries sent from another host or connection.

The MySQL embedded server is a drop-in replacement for the normal client library. Depending on your Linux distribution, you may need to install a package which is usually called "mysql-devel" or "mariadb-devel". You need to get the MySQL installation files e. After installation check that the needed files are there:.

Instead, you can get mysql. When you distribute your application, remember to include libmysql. It must be placed in the same folder as the application executable. The Qt OCI plugin supports connecting to Oracle database as determined by the version of the instant client used. This is dependent on what Oracle indicates it supports.

The plugin will auto-detect the database version and enable features accordingly. It's possible to connect to a Oracle database without a tnsnames. This requires that the database SID is passed to the driver as the database name, and that a hostname is given. Usually, this means that the database server will use the user authentication provided by the operating system instead of its own authentication mechanism.

Leave the username and password empty when opening a connection with QSqlDatabase to use the external credentials authentication. When you run your application, you will also need to add the oci. ODBC support can be used as a fallback for compliant databases if no native driver is available. For Unix systems, there are some implementations which must be installed first.

Some ODBC drivers claim to be version The QODBC plugin therefore checks whether the data source can be used after a connection has been established, and refuses to work if the check fails. Do this at your own risk! To avoid this problem, instruct the ODBC driver to behave as a 3. Note that this will affect multiple aspects of ODBC driver behavior, e. Before setting this connect option, consult your ODBC documentation about behavior differences you can expect.

Some drivers do not support scrollable cursors. In that case, only queries in forwardOnly mode can be used successfully. With Microsoft SQL Server the result set returned by a stored procedure that uses the return statement, or returns multiple result sets, will be accessible only if you set the query's forward only mode to forward using QSqlQuery::setForwardOnly. On Windows NT based systems, this is the default. It is recommended that you use unixODBC.

You need the unixODBC header files and shared libraries. The ODBC header and include files should already be installed in the right directories. Huy Huy 1, 18 18 silver badges 18 18 bronze badges. Also I want to add that on step 3, you can also move the mysql. It also means you'll need to tweak the. This is how i build the plugin link.

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