获取数据库表中所有的字段-Qt

Posted 2022-12-05 hebbely

1.sqllite数据库

获取sqlite数据库的数据表字段的关键是 PRAGMA table_info(\'tablename\')

bool getTableHeader(QSqlQuery &query, QString tableName, QString &header)

    header.clear();
    QString str = QString("PRAGMA table_info(\'%1\')").arg(tableName);
    query.prepare(str);
    if (query.exec())
    
        while (query.next())
        
            header += query.value(1).toString();
            header += ",";
        
        header += "\\n";
        return true;
    else
        qDebug() << query.lastError();
        return false;
    


bool outPutTableInfo(QString tabNmae)    
    QSqlQuery query; 
    QString strTableNmae = tabNmae;  
    QString str = "PRAGMA table_info(" + strTableNmae + ")";       
    query.prepare(str);   
    if (query.exec())   
            
        while (query.next())     
                   
            qDebug()