Mysql 我可以删除这个代码并为这个例子设置一个完整的外部连接吗?
有人能帮我写下完整的外部连接吗???MySQL没有Mysql 我可以删除这个代码并为这个例子设置一个完整的外部连接吗?,mysql,sql,database,drupal-7,outer-join,Mysql,Sql,Database,Drupal 7,Outer Join,有人能帮我写下完整的外部连接吗???MySQL没有FULL-OUTER-JOIN。那么我该怎么做呢? $sql = 'SELECT * FROM t1 LEFT JOIN t2 ON watchdog.wid = t1.wid UNION SELECT * FROM t1 RIGHT JOIN t2 ON watchdog.wid = t1.wid LIMIT ' . $number . '
FULL-OUTER-JOIN
。那么我该怎么做呢?
$sql = 'SELECT * FROM t1
LEFT JOIN t2 ON watchdog.wid = t1.wid
UNION
SELECT * FROM t1
RIGHT JOIN t2 ON watchdog.wid = t1.wid
LIMIT ' . $number . ' OFFSET ' . $number;
$result = db_query($sql);