HTML报表日期格式不对 导致报错ORA-01861: 文字与格式字符串不匹配

PROCEDURE MAIN(ERRBUF OUT VARCHAR2,
RETCODE OUT VARCHAR2,
P_CUSTOMER_ID IN VARCHAR2,
P_PERSON_ID IN VARCHAR2,
P_MAKER_ID IN VARCHAR2,
P_START_DATE IN VARCHAR2, --这里为字符格式
P_END_DATE IN VARCHAR2 --这里为字符格式
) IS l_contract_date_from DATE; -- 合同日期至
l_contract_date_to DATE; -- 合同日期至
BEGIN
RETCODE := '';
l_contract_date_from := trunc(fnd_conc_date.string_to_date(P_START_DATE));--调用函数转化为日期格式
l_contract_date_to := trunc(fnd_conc_date.string_to_date(P_END_DATE));--调用函数转化日期格式
OUTPUT_DATA_HTML(P_CUSTOMER_ID,
P_PERSON_ID,
P_MAKER_ID,
l_contract_date_from, --销售日期从
l_contract_date_to --销售日期至
);
END; PROCEDURE output_data_html(P_CUSTOMER_ID IN VARCHAR2,
P_PERSON_ID IN VARCHAR2,
P_MAKER_ID IN VARCHAR2,
P_START_DATE IN DATE, --这里为日期格式
P_END_DATE IN DATE --这里为日期格式
) IS
BEGIN SELECT *
FROM OE_ORDER_HEADERS_ALL OOH
WHERE (p_start_date IS NULL OR trunc(ooh.ordered_date) >= p_start_date)
AND (p_end_date IS NULL OR trunc(ooh.ordered_date) <= p_end_date);
END;--程序定义的参数时候的值集为 FND_STANDARD_DATE