Fetch returns more rows

Question

Hi,
I have the following table:
ID number, not null, unique
fname varchar2(50),not null
lname varchar2(50), not null
email varchar2(200)not null, uniqueand the following procedure that queries the table:
declare
name varchar2(100);
email varchar2(500);
stmt varchar2(4000);
nbr number;
begin
name:=substr('sam wilkins:[email protected]',1,(instr('sam wilkins:[email protected]',':')-1));
email:=substr('sam wilkins:[email protected]',(instr('sam wilkins:[email protected]',':')+1));
stmt:='select id from tbl where '
      || 'fname ||'' ''||'
      || 'lname='|| ''''||lower(name)||''''||' and email='||''''||lower(email)||''''||'';
execute immediate stmt into nbr;
select id into nbr from tbl where fname||' '||lname = name and email = email;
dbms_output.put_line(stmt);
dbms_output.put_line(nbr);
end;When I run the procedure with just the execute immediate, the query returns just one id, but when I use the select into, I get the 'Fetch returns more rows' error. Why is this?
Thanks.

Answer 1

Hi,
natet wrote:
Hi,
I have the following table:
ID number, not null, unique
fname varchar2(50),not null
lname varchar2(50), not null
email varchar2(200)not null, uniqueand the following procedure that queries the table:
declare
name varchar2(100);
email varchar2(500);
stmt varchar2(4000);
nbr number;
begin
name:=substr('sam wilkins:[email protected]',1,(instr('sam wilkins:[email protected]',':')-1));
email:=substr('sam wilkins:[email protected]',(instr('sam wilkins:[email protected]',':')+1));
stmt:='select id from tbl where '
|| 'fname ||'' ''||'
|| 'lname='|| ''''||lower(name)||''''||' and email='||''''||lower(email)||''''||'';
execute immediate stmt into nbr;
select id into nbr from tbl where fname||' '||lname = name and email = email;
dbms_output.put_line(stmt);
dbms_output.put_line(nbr);
end;When I run the procedure with just the execute immediate, the query returns just one id, but when I use the select into, I get the 'Fetch returns more rows' error. Why is this?
Thanks.Give your local variables names that cannot be confused for column names.
In this statement:
select  id
into      nbr
from      tbl
where      fname ||' '|| lname     = name
and      email                      = email;email (in both places) refers to the column in the table. No doubt you want to use the local variable in place of one of them.