共4个
一.只有输入参数没有返回结果的存储过程
二. 有输入和有一个返回值的存储过程
三、返回多行记录的存储过程(返回的是游标)
四、Hibernate调用oracle存储过程
一.只有输入参数没有返回结果的存储过程
建表 create table table_1(id varchar2(10),name varchar2(10));
--没有返回值的存储过程
create or replace procedure prc_1(t_id in varchar2,t_name in varchar2)
as
begin
insert into table_1 values(t_id,t_name);
end prc_1;
1.在sql plus 中执行
SQL> exec prc_1('1','杨2');
PL/SQL procedure successfully completed
2. 在java 中执行,返回结果
Class.forName("oracle.jdbc.OracleDriver").newInstance();
String url = "jdbc:oracle:thin:atf_ygj/mas123@192.168.6.19:1531:orcl";
String user = "atf_ygj";
String password = "mas123";
conn = DriverManager.getConnection(url, user, password);
conn.setAutoCommit(false);
cstmt = conn.prepareCall("{ call prc_1(?,?) }");
cstmt.setString(1, "100");
cstmt.setString(2, "TestOne");
cstmt.execute();
conn.commit();
========================================
二. 有输入和有一个返回值的存储过程
--有一个返回值的存储过程
create or replace procedure prc_2(t_id IN VARCHAR2,t_name OUT VARCHAR2) AS
begin
SELECT name INTO t_name FROM table_1 WHERE id= t_id and rownum<2;
end prc_2;
1. 在sql plus中执行,返回结果
SQL> var name varchar2(100);
SQL> exec prc_2('1',:name);
PL/SQL procedure successfully completed
name
---------
杨2
2. 在java 中执行,返回结果
Class.forName("oracle.jdbc.OracleDriver").newInstance();
String url = "jdbc:oracle:thin:atf_ygj/mas123@192.168.6.19:1531:orcl";
String user = "atf_ygj";
String password = "mas123";
conn = DriverManager.getConnection(url, user, password);
conn.setAutoCommit(false);
cstmt = conn.prepareCall("{ call prc_2(?,?) }");
cstmt.setString(1, "1");
cstmt.registerOutParameter(2, Types.VARCHAR);
cstmt.execute();
conn.commit();
String testPrint = cstmt.getString(2);
System.out.println("返回值:::::: " + testPrint);
输出:
返回值:::::: 杨2
三、返回多行记录的存储过程(返回的是游标)
由于oracle存储过程没有返回值,它的所有返回值都是通过out参数来替代的,列表同样也不例外,但由于是集合,所以不能用一般的参数,必须要用pagkage了.所以要分两部分,
1, 建一个程序包。
create or replace package test_package as
type test_CURSOR is ref cursor;
end test_package;
2,建立存储过程,存储过程为:
create or replace procedure prc_3(p_CURSOR out test_package.test_CURSOR) is
begin
OPEN p_CURSOR FOR SELECT * FROM table_1 order by id;
end prc_3;
可以看到,它是把游标(可以理解为一个指针),作为一个out 参数来返回值的。
===========================
3.在java中的执行
Class.forName("oracle.jdbc.OracleDriver").newInstance();
String url = "jdbc:oracle:thin:atf_ygj/mas123@192.168.6.19:1531:orcl";
String user = "atf_ygj";
String password = "mas123";
conn = DriverManager.getConnection(url, user, password);
cstmt = conn.prepareCall("{ call prc_3(?) }");
cstmt.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR);
cstmt.execute();
rs = (ResultSet) cstmt.getObject(1);
while (rs.next())
{
System.out.println("<tr><td>" + rs.getString(1) + "</td><td>" + rs.getString(2) + "</td></tr>");
}
输出结果:
<tr><td>1</td><td>杨2</td></tr>
<tr><td>100</td><td>TestOne</td></tr>
<tr><td>100</td><td>杨1</td></tr>
<tr><td>100</td><td>TestOne</td></tr>
<tr><td>200</td><td>Test2</td></tr>
4.在sql plus中执行
用一个存储过程调用prc_3
create or replace procedure prc_4 is
c test_package.test_CURSOR;
id varchar2(100);
name varchar2(100);
begin
prc_3(c);
LOOP
FETCH c INTO id,name;
EXIT WHEN c%NOTFOUND;
DBMS_OUTPUT.PUT_LINE('=='||id||'==='||name);
END LOOP;
CLOSE c;
end prc_4;
执行
SQL> set serveroutput on;
SQL> exec dbms_output.enable(999999999999999999999);
PL/SQL procedure successfully completed
SQL> exec prc_4;
==1===杨2
==100===TestOne
==100===杨1
==100===TestOne
==200===Test2
PL/SQL procedure successfully completed
四、Hibernate调用oracle存储过程
private void prc_test()
{
getHibernateTemplate().execute(new HibernateCallback()
{
public Object doInHibernate(Session session) throws HibernateException, SQLException
{
CallableStatement cstmt = session.connection().prepareCall("{ call prc_3(?) }");
cstmt.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR);
cstmt.execute();
ResultSet rs = (ResultSet) cstmt.getObject(1);
while (rs.next())
{
System.out.println("<tr><td>" + rs.getString(1) + "</td><td>" + rs.getString(2) + "</td></tr>");
}
return null;
}
}, true);
}
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