QSqlError Class▲
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Header: QSqlError
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CMake:
find_package(Qt6 REQUIRED COMPONENTS Sql)
target_link_libraries(mytarget PRIVATE Qt6::Sql)
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qmake: QT += sql
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Group: QSqlError is part of Database Classes
Detailed Description▲
A QSqlError object can provide database-specific error data, including the driverText() and databaseText() messages (or both concatenated together as text()), and the nativeErrorCode() and type().
See Also▲
See also QSqlDatabase::lastError(), QSqlQuery::lastError()
Member Type Documentation▲
enum QSqlError::ErrorType▲
This enum type describes the context in which the error occurred, e.g., a connection error, a statement error, etc.
Member Function Documentation▲
QSqlError::QSqlError(const QString &driverText = QString(), const QString &databaseText = QString(), QSqlError::ErrorType type = NoError, const QString &code = QString())▲
Constructs an error containing the driver error text driverText, the database-specific error text databaseText, the type type and the error code code.
DB2: It is possible for DB2 to report more than one error code. When this happens, ; is used as separator between the error codes.
QSqlError::QSqlError(const QSqlError &other)▲
Creates a copy of other.
[since 5.10] QSqlError::QSqlError(QSqlError &&other)▲
Move-constructs a QSqlError instance, making it point at the same object that other was pointing to.
The moved-from object other is placed in a partially-formed state, in which the only valid operations are destruction and assignment of a new value.
This function was introduced in Qt 5.10.
QSqlError::~QSqlError()▲
Destroys the object and frees any allocated resources.
QString QSqlError::databaseText() const▲
Returns the text of the error as reported by the database. This may contain database-specific descriptions; it may be empty.
See Also▲
See also driverText(), text()
QString QSqlError::driverText() const▲
Returns the text of the error as reported by the driver. This may contain database-specific descriptions. It may also be empty.
See Also▲
See also databaseText(), text()
bool QSqlError::isValid() const▲
Returns true if an error is set, otherwise false.
Example:
QSqlQueryModel model;
model.setQuery("select * from myTable");
if (model.lastError().isValid())
qDebug() << model.lastError();See Also▲
See also type()
QString QSqlError::nativeErrorCode() const▲
Returns the database-specific error code, or an empty string if it cannot be determined.
[since 5.10] void QSqlError::swap(QSqlError &other)▲
Swaps error other with this error. This operation is very fast and never fails.
This function was introduced in Qt 5.10.
QString QSqlError::text() const▲
This is a convenience function that returns databaseText() and driverText() concatenated into a single string.
See Also▲
See also driverText(), databaseText()
QSqlError::ErrorType QSqlError::type() const▲
Returns the error type, or -1 if the type cannot be determined.
bool QSqlError::operator!=(const QSqlError &other) const▲
Compare the other error's values to this error and returns true if it is not equal.
QSqlError &QSqlError::operator=(const QSqlError &other)▲
Assigns the other error's values to this error.
[since 5.10] QSqlError &QSqlError::operator=(QSqlError &&other)▲
Move-assigns other to this QSqlError instance.
The moved-from object other is placed in a partially-formed state, in which the only valid operations are destruction and assignment of a new value.
This function was introduced in Qt 5.10.
bool QSqlError::operator==(const QSqlError &other) const▲
Compare the other error's values to this error and returns true, if it equal.