| ORA-00987: | missing or invalid username(s) | | Cause: | No username was specified in a GRANT statement or one of the specified usernames is invalid. Valid usernames must be specified following the keyword TO in a GRANT statement to define a user. A username must begin with a letter, consist only of alphanumeric characters and the special characters $, _, and #, and be less than or equal to 30 characters. If it contains other characters, it must be enclosed in double quotation marks. It may not be a reserved word. | | Action: | Specify a valid username, or list of usernames, following the keyword TO in the GRANT statement. |
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