oracle存储过程procedure实例、调用 sql/plus调用存储过程 java调用存储过程

0.1 删除存储过程

drop procedure test_xg_pt;
0.2 sql/plus中调用存储过程，显示结果

set serveoutput on  --打开输出

var info1 number;  --输出1

var info2 number;  --输出2

declare

var1 varchar2(20); --输入1

var2 varchar2(20);--输入2

begin

pro(var1,var2,:info1,:info2);

end;

/

print info1;

print info2;
0.3 java调用

                        //查询列表

   proc = con.prepareCall("{call scott.testc(?)}");

   proc.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR);

   proc.execute();

   System.out.println("创建CallableStatement成功!");
   rs = (ResultSet) proc.getObject(1);

   System.out.println("操作数据表成功!");
   while (rs.next()) {

    System.out.print(rs.getLong("DEPTNO") + "    ");

    System.out.print(rs.getString("DNAME") + "    ");

    System.out.print(rs.getString("LOC") + "    ");

    System.out.println();
   }

   

   //插入

   proc = con.prepareCall("{call scott.testa(?,?,?)}");

   proc.setInt(1, 13);

   proc.setString(2, "com");

   proc.setString(3, "www");

   proc.execute();
 
1、最简单的存储过程

create or replace procedure test_xg_pl is

begin

dbms_output.put_line('Hello world!this is the first procedure');

end;
2、建立一个带输入输出参数的存储过程：把输入的数据传给输出参数

create or replace procedure test_xg_p2(a in number,x out number) is

begin

x:=a;

end test_xg_p2;
3、建立一个逻辑判断的存储过程，并包含输入输出参数：近似分数的登记判断

create or replace procedure test_xg_p3(a in number,x out varchar2) is

begin
if a>=90 then

begin

x:='A';

end;

end if;
if a<90 then

begin

x:='B';

end;

end if;
if a<80 then

begin

x:='C';

end;

end if;
if a<70 then

begin

x:='D';

end;

end if;
if a<60 then

begin

x:='E';

end;

end if;
end test_xg_p3;
4、建立一个带循环的存储过程：近似累加函数

create or replace procedure test_xg_p4(a in number,x out varchar2) is

tempresult number(16);

begin

tempresult:=0;

for tempa in 0..a loop

begin

tempresult:=tempresult + tempa;

end;

end loop;

x:=tempresult;

end test_xg_p4;
5、建立一个能从数据库中特定表中返回数据的存储过程

create or replace procedure test_xg_p5(x out varchar2) is

tempresult varchar2(1024);

begin

tempresult:='start->';

select loc into tempresult from dept where deptno=12;

x:=tempresult;

end test_xg_p5;
sql/plus调用

SQL> var info1 varchar2;

SQL> declare

  2    begin

  3     test_xg_p5(:info1);

  4    end;

  5  /

 

PL/SQL procedure successfully completed

info1

---------

南京

 

SQL>
6、建立一个能使用游标的带循环的存储过程

create or replace procedure test_xg_p6(x out varchar2) is

tempresult varchar2(10240);

cursor cursor1 is select * from dept;

begin

  tempresult:='start->';

    for cursor_result in cursor1 loop

      begin

      tempresult:=tempresult||cursor_result.deptno||cursor_result.dname||cursor_result.loc;

      end;

    end loop;

  x:=tempresult;

end test_xg_p6;

sql/plus调用

SQL> var info1 varchar2;

SQL> declare

  2  begin

  3  test_xg_p6(:info1);

  4  end;

  5  /

 

PL/SQL procedure successfully completed

info1

---------

start->15ffgg13comwww10ACCOUNTINGNEW YORK20RESEARCHDALLAS30SALESCHICAGO40OPERATIONSBOSTON5bbnn12开发南京

 

SQL>

7、插入数据

create or replace procedure testa(para0 in number,para1 in varchar2,para2 in varchar2)

 as

 begin

    insert into scott.dept(deptno,dname,loc) values(para0,para1,para2);

 end testa;
//java调用插入

   proc = con.prepareCall("{call scott.testa(?,?,?)}");

   proc.setInt(1, 13);

   proc.setString(2, "com");

   proc.setString(3, "www");

   proc.execute();
8、查询数据列表

8.1建立一个程序包

create or replace package testpackage as

 type test_cursor is ref cursor;

end testpackage;
8.2建立存储过程

create or replace procedure testc(p_cursor out testpackage.test_cursor) is

begin

open p_cursor for

     select * from scott.dept order by deptno asc;

end testc;
//java调用查询列表

   proc = con.prepareCall("{call scott.testc(?)}");

   proc.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR);

   proc.execute();

   System.out.println("创建CallableStatement成功!");
   rs = (ResultSet) proc.getObject(1);

   System.out.println("操作数据表成功!");
   while (rs.next()) {

    System.out.print(rs.getLong("DEPTNO") + "    ");

    System.out.print(rs.getString("DNAME") + "    ");

    System.out.print(rs.getString("LOC") + "    ");

    System.out.println();
   }