G-1030
🆓Warning
Avoid defining variables that are not used.
Reason
Unused variables decrease the maintainability and readability of your code.
Example
Non-Compliant Example
create or replace package body my_package is
procedure my_proc is
l_last_name employees.last_name%type;
l_first_name employees.first_name%type;
e_good exception;
begin
select e.last_name
into l_last_name
from employees e
where e.department_id = 10;
exception
when no_data_found then
null; -- handle_no_data_found;
when too_many_rows then
null; -- handle_too_many_rows;
end my_proc;
end my_package;
/Issues
| Line | Column | Message |
|---|---|---|
| 4 | 7 | Unused variable l_first_name. |
| 5 | 7 | Unused exception e_good. |
Compliant Solution - ★★★★★
create or replace package body my_package is
procedure my_proc is
l_last_name employees.last_name%type;
e_good exception;
begin
select e.last_name
into l_last_name
from employees e
where e.department_id = 10;
raise e_good;
exception
when no_data_found then
null; -- handle_no_data_found;
when too_many_rows then
null; -- handle_too_many_rows;
end my_proc;
end my_package;
/References
- same as plsql:S1481
- same as Trivadis G-1030
- same as plsqlopen:UnusedVariable