对,我有一些 21000 条记录,其中电子邮件地址末尾有数字(. + 15 位长数字,例如:xyz@gmail.com.201211200200027)
现在,我能想到的最佳解决方案是:
Update TABLE
set EmailAddress = (
select substring (EmailAddress, 1, (len(EmailAddress) - 16))
from TABLE)
Where ISNUMERIC(RIGHT(Emailaddress, 15)) = 1
上面的代码不起作用(我不是 T-SQL 专家,如果这段代码看起来很愚蠢,请原谅我)
如果我告诉该代码一个特定的电子邮件地址,那么它就可以工作。像这样的东西:
Update TABLE
set EmailAddress = (
select substring (EmailAddress, 1, (len(EmailAddress) - 16))
from TABLE)
Where ISNUMERIC(RIGHT(Emailaddress, 15)) = 1
and Emailaddress is 'xyz@gmail.com.201211200200027'
那么,如何更新这些电子邮件地址并删除最后 16 个字符?