ora – 00904

ORA-00904: invalid identifier ORA-00904: invalid identifier Cause: The column name entered is either missing or invalid. Action: Enter a valid column name. A valid column name must begin with a letter, be less than or equal to 30 characters, and consist of only alphanumeric characters and the special characters $, _, and #. If it […]

ORA-00904 ERROR MESSAGE “INVALID IDENTIFIER” Error Ora-00904 means you are attempting to execute an SQL statement that is one of the following: The SQL statement includes an invalid column name. The SQL statement includes a column name which does not currently exist. This error is most common when querying a SELECT statement. To resolve this error, first check to […]