????? 最近在复习下oracle的存储过程,写了个简单的例子。
????
create or replace procedure raise_comm(v_no   emp.empno%type,
                                       v_sale out emp.sale%type) as
begin
  select sale into v_sale from emp where empno = v_no;
  if v_sale is null then
    raise_application_error(-20001, 'It is no sale for this employee');
  end if;
exception
  when no_data_found then
    dbms_output.put_line('The employee is not exist');
   when others then
     dbms_output.put_line('Error No:'||SQLCODE);
     dbms_output.put_line(SQLERRM);
end;
?? 然后习惯性地在pl/sql下面的cmd window下测试,测试如下:
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SQL>set serveroutput on; SQL>variable g_sal number; SQL>call raise_comm(7080,:g_sal); Method called g_sal ---------
?? 看到结果当时愣了下,感觉有点不正常,我的异常信息怎么不见了,编号7080的记录不存在,不应该是这个结果,而是又换了个编号存在的继续测试,测试结果为:
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SQL> call raise_comm(7821,:g_sal); Method called g_sal --------- 1250
??? 我的异常信息真的不见了,而是换了种方式测试,找到存储过程,选中-->点击右键,选择Test
?? 
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???? 然后可以看到系统自动生成的测试方法:
??? 
??? 在Variable下面的Value里面填值,我的一个是入参,一个是出参,只要v_no填值就OK了。先测试不存在的记录
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??? 直接按F8,在DBMS Output页签下可以看到打印结果。
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???? 在测试一个存在的正常数据。
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???? 可以看到出参用黄颜色标记了。
???? 在测试一个异常的数据。v_no填11,可以在DBMS Output页签下面看到Exception信息。
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?????? 看到Test测试正常,感觉在Cmd Window下面直接测试存储过程有点不靠谱,打印信息都不见了,仿照系统自动生成的脚本,自己写了个测试脚本。
??????
declare g_sal number; begin raise_comm(&v_no, :g_sal); end;
???? 在pl/sql的Cmd Window下运行:
???
SQL> start f:/saveFile/testsql.sql 6 / The employee is not exist PL/SQL procedure successfully completed g_sal --------- SQL> start f:/saveFile/testsql.sql 6 / PL/SQL procedure successfully completed g_sal --------- 980 SQL> start f:/saveFile/testsql.sql 6 / Error No:-20001 ORA-20001: It is no sale for this employee PL/SQL procedure successfully completed g_sal ---------
??? 可以看到DBMS Output的打印信息。
??? 如果不想新建一个脚本,想直接在Cmd Window 下面看到打印结果,可以这样做:
??
SQL> set serveroutput on
SQL> declare
  2     g_sal number;
  3  begin
  4    select sale into g_sal from emp where empno=&v_no;
  5    if g_sal is null then
  6      raise_application_error(-20001, 'It is no sale for this employee');
  7    end if;
  8     dbms_output.put_line('The employee is not exist');
  9     dbms_output.put_line('g_sal='||g_sal);
 10  exception
 11    when no_data_found then
 12      dbms_output.put_line('The employee is not exist');
 13     when others then
 14       dbms_output.put_line('Error No:'||SQLCODE);
 15       dbms_output.put_line(SQLERRM);
 16  end;
 17  /
 
The employee is not exist
 
PL/SQL procedure successfully completed
 
SQL> 
SQL> declare
  2     g_sal number;
  3  begin
  4    select sale into g_sal from emp where empno=&v_no;
  5    if g_sal is null then
  6      raise_application_error(-20001, 'It is no sale for this employee');
  7    end if;
  8     dbms_output.put_line('The employee is not exist');
  9     dbms_output.put_line('g_sal='||g_sal);
 10  exception
 11    when no_data_found then
 12      dbms_output.put_line('The employee is not exist');
 13     when others then
 14       dbms_output.put_line('Error No:'||SQLCODE);
 15       dbms_output.put_line(SQLERRM);
 16  end;
 17  /
 
The employee is not exist
g_sal=980
 
PL/SQL procedure successfully completed
 
SQL> 
SQL> declare
  2     g_sal num