PLS-00172: string literal too long when trying to optimize a long SQL statement (4234091)

PLS-00172: string literal too long when trying to optimize a long SQL statement

I have a single SQL statement that is very long that I am trying to optimizer (in this case, more then 500 lines). But in Tuning Lab, when I click the "Optimize" button, it starts to process, but after a second or two, I get the following error:

"The Parser did not identify the text as a valid SQL statement.

<SQL Snippet...>

ORA-06550: line2, column22:
PLS-00172: string literal too long

Invalid SQL statement.
Verify that you have selected the right schema.
Only one SQL statement can be optimized in this window.
To analyze PL/SQL code or multiple SQL statements use the SQL Scanner."


The statement runs in SQL Plus, it is the right schema, and it is only a single SQL statement. Can the Tuning Lab handle a SQL statement this large?