The following lines contain the word 'select', 'insert', 'update' or 'delete':
SELECT xtatb.account_type_code
FROM xla_tab_acct_types_b xtatb
,xla_tab_acct_type_srcs xtsrc
,xla_sources_b xsb
WHERE xtatb.application_id = p_application_id
AND xtatb.enabled_flag = 'Y'
AND xtsrc.account_type_code = xtatb.account_type_code
AND xsb.application_id = xtsrc.source_application_id
AND xsb.source_code = xtsrc.source_code
AND xsb.source_type_code = xtsrc.source_type_code
FOR UPDATE NOWAIT;