Oracle 表的语句
create table student(sid int,sname varchar(20),sno int)
一:无返回值的存储过程
create or replace procedure proc_student(para1 Integer, para2 varchar2, para3 Integer)
is
BEGIN
insert into student(sid,snam,sno) values (para1,para2,para3);
end ;
public class TestProcedureOne {
public static final String DRIVER = "oracle.jdbc.driver.OracleDriver";
public static final String URL = "jdbc:oracle:thin:@localhost:1521:orcl";
public static final String USERNAEM = "system";
public static final String PASSWORD = "123";
public static void main(String[] args)
{
ResultSet rs = null;
Connection conn = null;
CallableStatement proc = null;
try {
Class.forName(DRIVER);
conn = DriverManager.getConnection(URL, USERNAEM, PASSWORD);
proc = conn.prepareCall("{call system.testc(?,?,?)}");//这里不是PreparedStatement接口,而是调用存储过程的接口
proc.setInt(1, 1);
proc.setString(2, "zhangsan");
proc.setInt(3, 2);//这里的参数是根据sql语句的顺序来的
proc.execute();
} catch (SQLException ex2) {
ex2.printStackTrace();
} catch (Exception ex2) {
ex2.printStackTrace();
} finally {
try {
if (rs != null) {
rs.close();
if (proc != null) {
proc.close();
}
if (conn != null) {
conn.close();
}
}
} catch (SQLException ex1) {
}
}
}
}
二:有返回值的存储过程(非列表)
create or replace procedure proc_student2(para_1 Integer,para_2 out varchar2, para_3 out
Integer)
is
begin
select snam,sno into para_2,para_3 from student where sid = para_1;
end proc_student2 ;
java的主要代码如下
proc = conn.prepareCall("{call system.proc_student2(?,?,?)}");
proc.setInt(1, 1);
proc.registerOutParameter(2, Types.VARCHAR);//输出参数的类型
proc.registerOutParameter(3, Types.INTEGER);
proc.execute();
System.out.println(proc.getString(2)+proc.getInt(3));
三:返回列表
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。如下:
create or replace package package_1
as
type test_cursor is ref cursor;
end package_1;
2,建立存储过程,存储过程为:
create or replace prcedure proc_student3(stu_cursor out package_1.test_cursor) is
begin
open stu_cursor for select * from system.student
end
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。
java的主要代码如下
proc = conn.prepareCall("{call system.proc_student3(?)}");
proc.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR);
proc.execute();
rs = (ResultSet) proc.getObject(1);
while(rs.next()){
System.out.println(rs.getInt(1)+rs.getString(2)+rs.getInt(3));
}