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116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtSql module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QSQLQUERY_H
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#define QSQLQUERY_H
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#include <QtSql/qsql.h>
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#include <QtSql/qsqldatabase.h>
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#include <QtCore/qstring.h>
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QT_BEGIN_NAMESPACE
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class QVariant;
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class QSqlDriver;
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class QSqlError;
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class QSqlResult;
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class QSqlRecord;
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template <class Key, class T> class QMap;
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class QSqlQueryPrivate;
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class Q_SQL_EXPORT QSqlQuery
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{
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public:
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explicit QSqlQuery(QSqlResult *r);
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explicit QSqlQuery(const QString& query = QString(), QSqlDatabase db = QSqlDatabase());
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explicit QSqlQuery(QSqlDatabase db);
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QSqlQuery(const QSqlQuery& other);
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QSqlQuery& operator=(const QSqlQuery& other);
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~QSqlQuery();
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bool isValid() const;
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bool isActive() const;
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bool isNull(int field) const;
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bool isNull(const QString &name) const;
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int at() const;
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QString lastQuery() const;
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int numRowsAffected() const;
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QSqlError lastError() const;
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bool isSelect() const;
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int size() const;
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const QSqlDriver* driver() const;
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const QSqlResult* result() const;
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bool isForwardOnly() const;
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QSqlRecord record() const;
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void setForwardOnly(bool forward);
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bool exec(const QString& query);
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QVariant value(int i) const;
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QVariant value(const QString& name) const;
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void setNumericalPrecisionPolicy(QSql::NumericalPrecisionPolicy precisionPolicy);
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QSql::NumericalPrecisionPolicy numericalPrecisionPolicy() const;
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bool seek(int i, bool relative = false);
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bool next();
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bool previous();
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bool first();
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bool last();
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void clear();
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// prepared query support
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bool exec();
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enum BatchExecutionMode { ValuesAsRows, ValuesAsColumns };
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bool execBatch(BatchExecutionMode mode = ValuesAsRows);
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bool prepare(const QString& query);
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void bindValue(const QString& placeholder, const QVariant& val,
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QSql::ParamType type = QSql::In);
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void bindValue(int pos, const QVariant& val, QSql::ParamType type = QSql::In);
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void addBindValue(const QVariant& val, QSql::ParamType type = QSql::In);
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QVariant boundValue(const QString& placeholder) const;
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QVariant boundValue(int pos) const;
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QMap<QString, QVariant> boundValues() const;
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QString executedQuery() const;
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QVariant lastInsertId() const;
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void finish();
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bool nextResult();
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private:
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QSqlQueryPrivate* d;
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};
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QT_END_NAMESPACE
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#endif // QSQLQUERY_H
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