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LEFT JOINACCESS中的aLEFT OUTER JOIN和SQL中的a一样吗?这两个程序中的连接等价物是什么?
LEFT JOIN
LEFT OUTER JOIN
它们是相同的。
OUTER不是必需的。
OUTER
LEFT OUTER JOIN是相同的LEFT JOIN
RIGHT OUTER JOIN是一个RIGHT JOIN
RIGHT OUTER JOIN
RIGHT JOIN
FULL OUTER JOIN是FULL JOIN- 但是 MS Access 不能使用FULL JOIN
FULL OUTER JOIN
FULL JOIN
INNER JOIN也可以写成JOIN- MS Access 不允许只使用这个词JOIN
INNER JOIN
JOIN