How to write nested queries using DB Adapter?

I want to write following nested query using DB Adapter can any one help...
SELECT INVOICE_ID,FILE_NAME FROM BILLING_INVOICE_PDF_V where FILE_ID =(
(SELECT MAX(FILE_ID) FROM BILLING_INVOICE_PDF_V WHERE (INVOICE_ID = ‘12345’)));
Thanks,
Ram.

Hi Ram,
Most likely it is the semicolon at the end of the SQL statement that's causing the db adapter to throw the error; just enter the custom sql statement without a semicolon at the end.
SELECT INVOICE_ID,FILE_NAME FROM BILLING_INVOICE_PDF_V where FILE_ID = (SELECT MAX(FILE_ID) FROM BILLING_INVOICE_PDF_V WHERE INVOICE_ID = '12345')

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