Plsql index

Question

Hi,
I have the below code. Please let me know why i am getting bdms error.
emp table has only one column- idd
insert into emp
values( 1)
declare
type emptabtype is table of emp%rowtype index by pls_integer;
empTab emptabtype;
begin
select * into empTab(1)
from emp
where idd = 1;
DBMS_OUTPUT.PUT_LINE( empTab(1));
end;
[Error] Execution (11: 1): ORA-06550: line 11, column 1:
PLS-00306: wrong number or types of arguments in call to 'PUT_LINE'
ORA-06550: line 11, column 1:
PL/SQL: Statement ignored

Answer 1

user543623 wrote:
I have the below code. Please let me know why i am getting bdms error.Simply because DBMS_OUTPUT.put_line() has a single VARCHAR2 argument.
In other words, it expects a string value to be passed.
You are passing what as an argument? An emp%rowtype data structure. This is obviously not a string.
The PL/SQL engine supports implicit data type conversion. So if a parameter needs to be of one data type and the you pass another data type value, it attempts to convert what you have supplied into the data type expected.
However, there is no data type conversion feature that changes a data record structure into a string.
Also - you do NOT need an associative array as collection data type. That is silly. Use a normal array instead.