Otherwise, you'll simply get an error. When all the requirements are met, make sure that the user name does not already exist in the database.
否则，只能是一个错误，当所有需求都满足之后，确保用户名不和数据库中现有的用户名重复，如果是重复了，也是返回一个错误。
Unless otherwise approved by the CIRC, the branches of the insurance companies shall not exist in any other form.
除经中国保监会批准外，保险公司的分支机构不得为其他形式。
I find consolation with Josef Beuys, who once said that art did not exist to be understood, otherwise it would be redundant.
在约瑟夫·波伊斯那里我得到了安慰，他曾说艺术的存在并不是为了要被理解，否则艺术就是多余的了。
Only those results will have any value that are accompanied by self-remembering. Otherwise, you yourselves do not exist in your observations. In which case what are all your observations worth?
只有伴随记得自己的结果才有价值，要不然，在你的观察中连你自己都不存在，像这样的观察又有什么用？
As long as the prospects for a federal bailout exist (under the "too big to fail" scenario) corporations will take risks they otherwise might not take.
只要一个联邦救助的前景存在下的“过大(失败”的情况)公司将承担风险，否则他们可能不会。
The file is created if it does not exist, otherwise it is truncated.
若文件不存在则建立该文件。
The file is created if it does not exist, otherwise it is truncated.
若文件不存在则建立该文件。
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