Shulou(Shulou.com)06/01 Report--

Create or replace procedure helloworld (A1 in number,a2 in number,sum out number,sub out number)

As

Begin

A1RV 100

Sum:=a1+a2

Dbms_output.put_line (A1)

End

/

Create or replace procedure helloworld (A1 in number,a2 in number,sum out number,sub out number)

As

Begin

Sum:=a1+a2

Dbms_output.put_line (A1)

End

/

The output passed in is not a variable, so a _ 1 _ no a _ 2 cannot be reassigned.

But sum,sub can. They are output parameters.

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