Oracle PLS-00363: expression '' cannot be used as an assignment target

Question

Hello not sure why Im getting this error. Basically I get it in these three lines:

PLS-00363: expression \'p_temp_foo.editable.modified_by\' cannot be used a         


        

Answer 1

Generate new VARCHAR2 type variable to assign your IN (input) string.

procedure sp_name(
ps_list              IN VARCHAR2,
...
other IN's and OUT's
...
)
as

ps_list_copy          VARCHAR2 (32000); 

begin 
ps_list_copy := ps_list;
...
do your works with ps_list_copy
...
...
Exception when others then
....
end sp_name;

Answer 2

p_temp_foo is an IN parameter. By nature, these are read only. You could define it as an IN OUT parameter, or an OUT parameter.

For more info see here: http://plsql-tutorial.com/plsql-passing-parameters-procedure-function.htm