QSqlErrorType

QSqlErrorType is an enumeration that defines the types of errors that can occur when working with SQL databases in the Qt framework. These error types are used by the QSqlError class to convey specific information about a database operation failure.

The enumeration includes several distinct values, each representing a particular category of SQL error. For instance, QSqlErrorType::ConnectionError indicates a problem establishing a connection to the database. QSqlErrorType::StatementError signifies an issue with the SQL statement itself, such as a syntax error or a problem with the query execution. QSqlErrorType::DatabaseError is a more general category for errors originating directly from the database system, not necessarily tied to a specific statement or connection.

Other values might include QSqlErrorType::DriverError for errors related to the specific database driver being used, and QSqlErrorType::NotSupportedError for operations that the underlying database or driver does not support. Understanding these different error types is crucial for robust error handling in Qt applications that interact with SQL databases. Developers can check the QSqlErrorType of a QSqlError object to determine the nature of the problem and implement appropriate recovery or reporting mechanisms.