Title :
ORA-00900 invalid SQL statement
Cause :
The statement is not recognized as a valid SQL statement. This error can occur if the Procedural Option is not installed and a SQL statement is issued that requires this option (for example, a CREATE PROCEDURE statement). You can determine if the Procedural Option is installed by starting SQL*Plus. If the pL/SQL banner is not displayed, then the option is not installed.
Action :
Correct the syntax or install the Procedural Option.