Database problem in Qt

Question

I am creating an application using Qt for Symbian Devices & i want to use database(sqlite) but it is craeting this error. How to remove this?

Code:

    QSqlQuery query;
    query.prepare("INSERT INTO glucose(value, date, time, duration, note)""VALUES(:value, :date, :time, :duration, :note)");
    query.bindValue(":value",edit_glucose->text());
    query.bindValue(":date",datetime->date());
    query.bindValue(":time",datetime->time());
    query.bindValue(":duration","a");
    query.bindValue(":note",edit_note->toPlainText());
    query.exec();

adddata.obj:: error: unresolved external symbol "__declspec(dllimport) public: _thiscall QSqlQuery::~QSqlQuery(void)" (_imp_??1QSqlQuery@@QAE@XZ) referenced in function "private: void __thiscall AddData::save(void)" (?save@AddData@@AAEXXZ)

Thank you.

It's a linker error. are you sure you have linked against QDatabase library? — Karl von Moor
– Karl von Moor, Commented Feb 5, 2011 at 7:46
#include <Qdatabase> & other headers related to this are not working...its showing file does not exists. SO I am using #include <Qt/qsqlquery.h> — amrit_neo
– amrit_neo, Commented Feb 5, 2011 at 8:44

Patrice Bernassola · Accepted Answer · 2011-02-05 10:57:32Z

2

I think you forgot to add the SQL support in your .pro file

QT += sql

Then you can include QSqlQuery.

answered Feb 5, 2011 at 10:57

Patrice Bernassola

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