The following lines contain the word 'select', 'insert', 'update' or 'delete':
DELETE FROM po_session_gt WHERE index_char1 in ( ICX_ITEM_DIAG_PVT.g_file_key , ICX_ITEM_DIAG_PVT.g_error_key,ICX_ITEM_DIAG_PVT.g_id_values_key) ;
SELECT char1, char2 , char3, char4
FROM po_session_gt
WHERE index_char1 =ICX_ITEM_DIAG_PVT.g_file_key;
SELECT 'TRUE' from dual where exists (select 'Y'
FROM po_session_gt
WHERE index_char1 =ICX_ITEM_DIAG_PVT.g_file_key
and char4 = 'TRUE' );