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# QSql Class Reference
[sql module]

The QSql class is a namespace for Qt SQL identifiers that need to be global-like. More...

`#include <qsql.h>`

List of all member functions.

## Public Members

- QSql ()
- enum Op { None = -1, Insert = 0, Update = 1, Delete = 2 }
- enum Location { BeforeFirst = -1, AfterLast = -2 }
- enum Confirm { Cancel = -1, No = 0, Yes = 1 }
- enum ParameterType { In = 1, Out = 2, InOut = 3 }
- enum TableType { Tables = 0x01, SystemTables = 0x02, Views = 0x04, AllTables = 0xff }

## Detailed Description

The QSql class is a namespace for Qt SQL identifiers that need to be global-like.

Normally, you can ignore this class. Several Qt SQL classes inherit it, so all the identifiers in the Qt SQL namespace are visible without qualification.

See also Database Classes.

## Member Type Documentation

### QSql::Confirm

This enum type describes edit confirmations.

- `QSql::Yes`
- `QSql::No`
- `QSql::Cancel`

### QSql::Location

This enum type describes SQL navigation locations.

- `QSql::BeforeFirst`
- `QSql::AfterLast`

### QSql::Op

This enum type describes edit operations.

- `QSql::None`
- `QSql::Insert`
- `QSql::Update`
- `QSql::Delete`

### QSql::ParameterType

This enum is used to set the type of a bind parameter

- `QSql::In` - the bind parameter is used to put data into the database
- `QSql::Out` - the bind parameter is used to receive data from the database
- `QSql::InOut` - the bind parameter is used to put data into the database; it will be overwritten with output data on executing a query.

### QSql::TableType

This enum type describes types of tables

- `QSql::Tables` - All the tables visible to the user
- `QSql::SystemTables` - Internal tables used by the DBMS
- `QSql::Views` - All the views visible to the user
- `QSql::AllTables` - All of the above

## Member Function Documentation

### QSql::QSql ()

Constructs a Qt SQL namespace class

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