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**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtSql module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** accordance with the commercial license agreement provided with the
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** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
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****************************************************************************/
#ifndef QSQLQUERY_H
#define QSQLQUERY_H
#include <QtSql/qsql.h>
#include <QtSql/qsqldatabase.h>
#include <QtCore/qstring.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Sql)
class QVariant;
class QSqlDriver;
class QSqlError;
class QSqlResult;
class QSqlRecord;
template <class Key, class T> class QMap;
class QSqlQueryPrivate;
class Q_SQL_EXPORT QSqlQuery
{
public:
QSqlQuery(QSqlResult *r);
QSqlQuery(const QString& query = QString(), QSqlDatabase db = QSqlDatabase());
explicit QSqlQuery(QSqlDatabase db);
QSqlQuery(const QSqlQuery& other);
QSqlQuery& operator=(const QSqlQuery& other);
~QSqlQuery();
bool isValid() const;
bool isActive() const;
bool isNull(int field) const;
int at() const;
QString lastQuery() const;
int numRowsAffected() const;
QSqlError lastError() const;
bool isSelect() const;
int size() const;
const QSqlDriver* driver() const;
const QSqlResult* result() const;
bool isForwardOnly() const;
QSqlRecord record() const;
void setForwardOnly(bool forward);
bool exec(const QString& query);
QVariant value(int i) const;
void setNumericalPrecisionPolicy(QSql::NumericalPrecisionPolicy precisionPolicy);
QSql::NumericalPrecisionPolicy numericalPrecisionPolicy() const;
bool seek(int i, bool relative = false);
bool next();
bool previous();
#ifdef QT3_SUPPORT
inline QT3_SUPPORT bool prev() { return previous(); }
#endif
bool first();
bool last();
void clear();
// prepared query support
bool exec();
enum BatchExecutionMode { ValuesAsRows, ValuesAsColumns };
bool execBatch(BatchExecutionMode mode = ValuesAsRows);
bool prepare(const QString& query);
void bindValue(const QString& placeholder, const QVariant& val,
QSql::ParamType type = QSql::In);
void bindValue(int pos, const QVariant& val, QSql::ParamType type = QSql::In);
void addBindValue(const QVariant& val, QSql::ParamType type = QSql::In);
QVariant boundValue(const QString& placeholder) const;
QVariant boundValue(int pos) const;
QMap<QString, QVariant> boundValues() const;
QString executedQuery() const;
QVariant lastInsertId() const;
void finish();
bool nextResult();
private:
QSqlQueryPrivate* d;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // QSQLQUERY_H
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