用户名已经存在，请选择不同的用户名。
Username Already exists. Please choose a different Username.
如果该用户名已经存在，DB 2安装向导就会在默认的名称后面增加一个1- 99的数字，直到遇到一个不存在的用户ID。
If the user name already exists, the DB2 Setup wizard appends a number from 1-99 to the default user name, until a user ID that does not already exist can be created.
第一个错误ID是用于系统中已经存在一个用户名的情况。
The first error ID is for when a user name already exists in the system.
如果特定用户名的用户在数据库中已经存在，则一个JSON数据结构将返回给浏览器。
A JSON data structure is returned to the browser if a user with given username already exists in the database.
对于您的应用程序，可能已经存在一个登录页面，使用自己已有的用户名即可。
For your application, you probably already have a login, so you can use your existing user name.
如果响应包含用户数据，则它表示特定用户名称的用户已经存在。
If the response contains the user data, it indicates a user with the given user name already exists.
要注册新的帐户，只要选择的用户名不使用和遵循的情况下服务器的用户名的指示已经存在。
To register a new account, simply chose a username that isn't used and follow the instructions given by the server in case the username already exists.
要注册新的帐户，只要选择的用户名不使用和遵循的情况下服务器的用户名的指示已经存在。
To register a new account, simply chose a username that isn't used and follow the instructions given by the server in case the username already exists.
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