dqx36753 2016-06-07 02:13
浏览 19
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从查询结果中获取列名称

Is it possible to get column name from a query, for example:

SELECT name AS EmployeeName FROM wh.employee

Is it possible to get EmployeeName in the return results. My current PHP Code:

$result = $this->bigQueryService->jobs->getQueryResults($this->projectId, $jobId)
$rows = $result->getRows();
if ($rows) {
    foreach ($rows as $row) {
         /** @var \Google_Service_Bigquery_TableCell $cell */
         foreach ($row["f"] as $cell) {
             print $cell->getV();
         }
    }  
}

Basically, I want to get the EmployeeName from the query results, is this possible?

  • 写回答

1条回答 默认 最新

  • dtgu21994537 2016-06-07 03:30
    关注

    I am playing with Go right now so my very simplified example is in Go:

    fields := resp.Schema.Fields
    for i :=0 ; i < len(fields); i++ {
      field := fields[i].Name
      fmt.Println(field)
    }
    

    Check schema of the result for more details

    I am not PHP person, but I think it should be something like

    $fields = $result->getSchema()->getFields();
    $fieldNames = array();
    foreach ($fields as $field) {
        $fieldNames[] = $field['name'];
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

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