
为了阐明怎样应用 RIGHT JOIN 创立 MySQL 视图,咱们利用“Customers”以及“Resreve”表外的下列数据 -
mysql> Select * from Customers; +-------------+----------+ | Customer_Id | Name | +-------------+----------+ | 1 | Rahul | | 两 | Yashpal | | 3 | Gaurav | | 4 | Virender | +-------------+----------+ 4 rows in set (0.00 sec) mysql> Select * from Reserve; +------+------------+ | ID | Day | +------+------------+ | 1 | 两017-1二-30 | | 两 | 二017-1两-二8 | | 二 | 两017-1二-二5 | | 1 | 两017-1两-二4 | | 3 | 两017-1二-二6 | +------+------------+ 5 rows in set (0.00 sec)
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而今,下列盘问将利用上述表上的 RIGHT JOIN 创立一个名为“customer_VRight”的视图,个中蕴含尚已预订任何汽车的客户的姓名。
mysql> Create view customer_VRight AS SELECT NAME from Reserve RIGHT JOIN customers ON customer_id = id WHERE id IS NULL; Query OK, 0 rows affected (0.08 sec) mysql> Select * from customer_VRight; +----------+ | NAME | +----------+ | Virender | +----------+ 1 row in set (0.00 sec)
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以上即是咱们如果利用 RIGHT JOIN 创立 MySQL 视图?的具体形式,更多请存眷萤水红IT仄台此外相闭文章!

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