问题:
"在下面给出的SQL语句中,()代码会导致语句的失败。
1 SELECT LastName,FirstName,Email
2 From Customers,EmailUsers
3 ON Customers.UserName=EmailUsers.UserName
4 ORDER BY LastName ASC"
A . 1
B . 2
C . 3
D . 4
"在下面给出的SQL语句中,()代码会导致语句的失败。
1 SELECT LastName,FirstName,Email
2 From Customers,EmailUsers
3 ON Customers.UserName=EmailUsers.UserName
4 ORDER BY LastName ASC"
● 参考解析
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