The following lines contain the word 'select', 'insert', 'update' or 'delete':
SELECT 'Invalid tax Code'
INTO l_temp
From Dual
Where exists
( Select line.vat_tax_id
FROM ra_customer_trx_lines line,
ar_vat_tax tax
WHERE line.customer_trx_id = p_customer_trx_id
AND line.line_type = 'LINE'
AND line.vat_tax_id = tax.vat_tax_id
AND p_trx_date NOT BETWEEN tax.start_date
AND NVL(tax.end_date,
p_trx_date));