G-7440
🆓Warning
Never use OUT parameters to return values from a function.
Reason
A function should return all its data through the return clause. Having an out parameter prohibits usage of a function within SQL statements.
Example
Non-Compliant Example
create or replace package body my_package is
function my_function(out_date out date) return boolean
deterministic
is
begin
out_date := sysdate;
return true;
end my_function;
end my_package;
/Issues
| Line | Column | Message |
|---|---|---|
| 2 | 25 | OUT parameter out_date in my_function. |
Compliant Solution - ★★★★★
create or replace package body my_package is
function my_function return date
deterministic
is
begin
return sysdate;
end my_function;
end my_package;
/References
- same as Trivadis G-7440
- same as plsql:FunctionOutParametersCheck