你好, friend ,我有一个问题。我的 id 是“28”,我只想显示该 id 的位置及其第一个对象。我怎样才能生成这种类型的 SQL?
WP SQL:
$rows = $wpdb->get_results(
"SELECT hotels.id,hotels.hotel,reviews.hotel_id,reviews.id
FROM hotels
INNER JOIN reviews ON hotels.id = reviews.hotel_id" );
var_dump($rows);
var_dump
array (size=4)
0 =>
object(stdClass)[710]
public 'id' => string '28' (length=2)
public 'hotel' => string 'xxxxx' (length=14)
public 'hotel_id' => string '17' (length=2)
1 =>
object(stdClass)[709]
public 'id' => string '29' (length=2)
public 'hotel' => string 'xxxxxx' (length=14)
public 'hotel_id' => string '17' (length=2)
最佳答案
使用 WHERE 子句
SELECT hotels.hotel,reviews.hotel_id,reviews.id
FROM hotels
INNER JOIN reviews ON hotels.id = reviews.hotel_id
WHERE reviews.id = 28
关于php - WP环境下内连接SQL,where id=id,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/44040327/