C:\inetpub\wwwroot\umfrage.xxxx\framework\db\CDbCommand.php(358)
 
346         {
347             if($this->_connection->enableProfiling)
348                 Yii::endProfile('system.db.CDbCommand.execute('.$this->getText().$par.')','system.db.CDbCommand.execute');
349 
350             $errorInfo=$e instanceof PDOException ? $e->errorInfo : null;
351             $message=$e->getMessage();
352             Yii::log(Yii::t('yii','CDbCommand::execute() failed: {error}. The SQL statement executed was: {sql}.',
353                 array('{error}'=>$message, '{sql}'=>$this->getText().$par)),CLogger::LEVEL_ERROR,'system.db.CDbCommand');
354 
355             if(YII_DEBUG)
356                 $message.='. The SQL statement executed was: '.$this->getText().$par;
357 
358             throw new CDbException(Yii::t('yii','CDbCommand failed to execute the SQL statement: {error}',
359                 array('{error}'=>$message)),(int)$e->getCode(),$errorInfo);
360         }
361     }
362 
363     /**
364      * Executes the SQL statement and returns query result.
365      * This method is for executing an SQL query that returns result set.
366      * @param array $params input parameters (name=>value) for the SQL execution. This is an alternative
367      * to {@link bindParam} and {@link bindValue}. If you have multiple input parameters, passing
368      * them in this way can improve the performance. Note that if you pass parameters in this way,
369      * you cannot bind parameters or values using {@link bindParam} or {@link bindValue}, and vice versa.
370      * Please also note that all values are treated as strings in this case, if you need them to be handled as

Stack Trace
#0   
+
 C:\inetpub\wwwroot\umfrage.xxxx\framework\db\CDbCommand.php(1445): CDbCommand->execute()
#1   
+
 C:\inetpub\wwwroot\umfrage.xxxx\application\helpers\update\updatedb_helper.php(3977): CDbCommand->alterColumn("{{questions}}", "type", "string(1) NOT NULL")
#2   
+
 C:\inetpub\wwwroot\umfrage.xxxx\application\helpers\update\updatedb_helper.php(746): alterColumn("{{questions}}", "type", "string(1)", false, ...)
#3   
+
 C:\inetpub\wwwroot\umfrage.xxxx\application\helpers\update\update_helper.php(31): db_upgrade_all(156)
#4   
+
 C:\inetpub\wwwroot\umfrage.xxxx\application\controllers\admin\databaseupdate.php(40): CheckForDBUpgrades("yes")
#5   
 unknown(0): databaseupdate->db("yes")
#6   
+
 C:\inetpub\wwwroot\umfrage.xxxx\framework\web\actions\CAction.php(109): ReflectionMethod->invokeArgs(databaseupdate, array("yes"))
#7   
+
 C:\inetpub\wwwroot\umfrage.xxxx\application\core\Survey_Common_Action.php(83): CAction->runWithParamsInternal(databaseupdate, ReflectionMethod, array("r" => "admin/databaseupdate/sa/db/continue/yes", "sa" => "db", "continue" => "yes"))
#8   
+
 C:\inetpub\wwwroot\umfrage.xxxx\framework\web\CController.php(308): Survey_Common_Action->runWithParams(array("r" => "admin/databaseupdate/sa/db/continue/yes", "sa" => "db", "continue" => "yes"))
#9   
+
 C:\inetpub\wwwroot\umfrage.xxxx\framework\web\CController.php(286): CController->runAction(databaseupdate)
#10   
+
 C:\inetpub\wwwroot\umfrage.xxxx\framework\web\CController.php(265): CController->runActionWithFilters(databaseupdate, array())
#11   
+
 C:\inetpub\wwwroot\umfrage.xxxx\application\controllers\AdminController.php(158): CController->run("databaseupdate")
#12   
+
 C:\inetpub\wwwroot\umfrage.xxxx\framework\web\CWebApplication.php(282): AdminController->run("databaseupdate")
#13   
+
 C:\inetpub\wwwroot\umfrage.xxxx\framework\web\CWebApplication.php(141): CWebApplication->runController("admin/databaseupdate/sa/db/continue/yes")
#14   
+
 C:\inetpub\wwwroot\umfrage.xxxx\framework\base\CApplication.php(185): CWebApplication->processRequest()
#15   
+
 C:\inetpub\wwwroot\umfrage.xxxx\index.php(194): CApplication->run()