The below query will fetch the details of accounting flexfield structure:
select sob.name Ledger_Name
, sob.ledger_id Ledger_Id
, sob.chart_of_accounts_id coa_id
, fifst.id_flex_structure_name struct_name
select sob.name Ledger_Name
, sob.ledger_id Ledger_Id
, sob.chart_of_accounts_id coa_id
, fifst.id_flex_structure_name struct_name