此代码块在调用“put_line”时返回错误 pls-00306 错误数量或类型的参数:
SET SERVEROUTPUT ON
DECLARE
ch varchar2(16);
cursor ebs_user_cur
is
select xmlagg(xmlelement("r", ch)).extract('//text()').getstringval()
from
(
select distinct first_value(ch) over (partition by lower(ch))
from (
select substr('abcd#efghijklmn#pqrstuvwxyzABC$DEFGHIJK$LMNPQR!STUVWXYZ1!23456789',
level, 1) ch
from dual
connect by level <= 59
order by dbms_random.value
)
where rownum <= dbms_random.value(18,18)
);
l_passwd ebs_user_cur%ROWTYPE;
BEGIN
open ebs_user_cur;
loop
fetch ebs_user_cur into l_passwd;
DBMS_OUTPUT.PUT_LINE(l_passwd);
EXIT WHEN l_passwd%NOTFOUND;
END LOOP;
close ebs_user_cur;
END;
错在哪里?
谢谢
答案 0 :(得分:1)
l_passwd.{field_name}
中指定确切的字段名称:SET SERVEROUTPUT ON
DECLARE
ch varchar2(16);
cursor ebs_user_cur
is
select xmlagg(xmlelement("r", ch)).extract('//text()').getstringval()
as res -- <<< see here
from
(
select distinct first_value(ch) over (partition by lower(ch))
from (
select substr('abcd#efghijklmn#pqrstuvwxyzABC$DEFGHIJK$LMNPQR!STUVWXYZ1!23456789',
level, 1) ch
from dual
connect by level <= 59
order by dbms_random.value
)
where rownum <= dbms_random.value(18,18)
);
l_passwd ebs_user_cur%ROWTYPE;
BEGIN
open ebs_user_cur;
loop
fetch ebs_user_cur into l_passwd;
DBMS_OUTPUT.PUT_LINE(l_passwd.res); -- <<< .res here
EXIT WHEN l_passwd%NOTFOUND;
END LOOP;
close ebs_user_cur;
END;