identifier: invalid identifier
- identifier: The identifier or column name that was invalid.
The identifier or column name entered was invalid.
Ensure the following:
- Enter a valid identifier or column name and verify that there are no typos in the identifier or column name. A valid identifier must begin with a letter, be less than or equal to 128 characters, and consist of only alphanumeric characters and the special characters $, _, and #. If it contains other characters, then it must be enclosed in double quotation marks.
- It must not be a reserved word unless it is enclosed in double quotation marks.
- If double quotation marks and mixed case were used for a column name when creating the table, then references to that column must use matching case and quotation marks.