请纠正我这里，我试图更新或插入值在现有的行在我的数据库中，但不能这样做，所有的变量是工作的，但它没有进入数据库也检查在phpmyadmin sql查询，但它也没有工作，那里它显示成功，但没有一个数据进入mysql列。。

include("connect.php");

$sql = "UPDATE tblapps SET applsex='$applsex', placbrth='$placbrth', countrybrth='$countrybrth', religionxx='$religionxx', visualmark='$visualmark', edu_id='$edu_id', nationality_by='$nationality_by', prev_nationality='$prev_nationality', issueplace='$issueplace', expirydate='$expirydate', othpassport='$otherpassport', oth_passportno='$oth_pass_no', oth_pptissueplc='$oth_ppt_issue_place', oth_pptissuentl='$oth_ppt_nationality', country_issue='$country_issue', previssuedate='$previssuedate' WHERE app_id=$appid";
if(mysqli_query($link, $sql)){
    echo "Records were updated successfully.";
} else {
    echo "ERROR: Could not able to execute $sql. " . mysqli_error($link);
}

?>

这是个错误，我明白了。

ERROR: Could not able to execute UPDATE tblapps SET applsex='', placbrth='delhi', countrybrth='United States', religionxx='CHRISTIAN', visualmark='', edu_id='GRADUATE', nationality_by='By Birth', prev_nationality='', issueplace='delhi', expirydate='2018-11-01', othpassport='on', oth_passportno='9876546789', oth_pptissueplc='delhi', oth_pptissuentl='United States', country_issue='', previssuedate='2018-01-02' WHERE app_id='1515130357782247085'. Unknown column 'othpassport' in 'field list'