These classes provide access to SQL databases, including the on-device database.
| QSql | Contains miscellaneous identifiers used throughout the Qt SQL library |
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| QSqlDatabase | Represents a connection to a database |
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| QSqlDriver | Abstract base class for accessing specific SQL databases |
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| QSqlDriverCreator | Template class that provides a SQL driver factory for a specific driver type |
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| QSqlDriverCreatorBase | The base class for SQL driver factories |
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| QSqlError | SQL database error information |
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| QSqlField | Manipulates the fields in SQL database tables and views |
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| QSqlIndex | Functions to manipulate and describe database indexes |
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| QSqlQuery | Means of executing and manipulating SQL statements |
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| QSqlQueryModel | Read-only data model for SQL result sets |
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| QSqlRecord | Encapsulates a database record |
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| QSqlRelationalTableModel | Editable data model for a single database table, with foreign key support |
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| QSqlResult | Abstract interface for accessing data from specific SQL databases |
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| QSqlTableModel | Editable data model for a single database table |
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