从oracle中的存储过程分配输出参数

Question

请帮助我以下方案

我需要在另一个内部调用存储过程.内部SP将返回一个数字值,我需要将其存储在局部变量中.

粗糙的代码

AssignSpResult NUMBER;

AssignSpResult = SPtobecalled(Param1,Param2,OutParam);

这种语法很可能是错误的,所以请帮助纠正它

Answer 1

以下是它的示例:

HR\XE> create or replace procedure Proc1(p_out out number)
  2    is
  3    begin
  4      p_out := 123;
  5*   end;
HR\XE> /

Procedure created.

HR\XE> create or replace procedure Proc2
  2    is
  3      l_val number;
  4    begin
  5      Proc1(l_val); 
  6      dbms_output.put_line('Here is a value returned by Proc1: ' || to_char(l_val));
  7    end;
  8  /

Procedure created.

HR\XE> set serveroutput on;
HR\XE> exec Proc2;

Here is a value returned by Proc1: 123                                            

PL/SQL procedure successfully completed

根据您的需要,使用函数返回数据的过程处理结果可能更方便.这是一个例子:

HR\XE> create or replace function F1 return number
  2    is
  3      l_ret_value number;
  4    begin
  5      l_ret_value := 123;
  6      return l_ret_value;
  7    end;
HR\XE> /

Function created.

HR\XE> create or replace procedure Proc3
  2    is
  3      l_val number;
  4    begin
  5      l_val := F1;
  6      dbms_output.put_line('Value returned by the F1 function: ' || 
                              To_Char(l_val));
  7    -- Or
  8      dbms_output.put_line('Value returned by the F1 function: ' || To_Char(F1));
  9   end;
HR\XE> /

Procedure created.

HR\XE> set serveroutput on;
HR\XE> exec proc3;

Value returned by the F1 function: 123
Value returned by the F1 function: 123

PL/SQL procedure successfully completed.

HR\XE>