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sql determines whether a field is empty
- PHP中文网Original
- 2017-07-03 17:30:112568browse
Determine whether a certain field in sql is NULL
<span style="color: #000000">public function dataNull($id){
$sql = 'SELECT * FROM `vvt_company_funcs_user` WHERE ISNULL(`last_login_time`) AND id ='. $id;
$res = $this->query($sql);
return $res;
}
</span>
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