通用存储过程

--程序包-规范(通用存储过程)
create or replace package pagePack
as
   type pageCursorType is ref cursor;--游标类型
   procedure procPage(
     tableName varchar2,--查询的表名
     showField varchar2,--查询的字段，T.*表示所有
     whereText varchar2,--查询的条件，不要where
     orderText varchar2,--排序的字段，不要order by
     pageIndex integer,--显示的页码
     pageSize integer,--每页显示的记录数
     pageCursor out pageCursorType,--返回的游标
     counter out integer--返回的记录总数
     );
end;
--程序包-主体
create or replace package body pagePack
as
   procedure procPage(
     tableName varchar2,--查询的表名
     showField varchar2,--查询的字段，T.*表示所有
     whereText varchar2,--查询的条件，不要where
     orderText varchar2,--排序的字段，不要order by
     pageIndex integer,--显示的页码
     pageSize integer,--每页显示的记录数
     pageCursor out pageCursorType,--返回的游标
     counter out integer--返回的记录总数
     )
   as
      sqlstr varchar2(400);
      wText varchar2(100);
      oText varchar2(100);
   begin
      if whereText is not null then
         wText:=' where '||whereText;
      end if;
      if orderText is not null then
         oText:=' order by '||orderText;
      end if;
      sqlstr:='select * from 
      (
      select rownum rn, '||showField||' from
      (select * from '||tableName||wText||oText ||' ) T
      where rownum<=:1
      )
      where rn>:2';
      dbms_output.put_line(sqlstr);
      open pageCursor for sqlstr using pageSize*pageIndex,pageSize*(pageIndex-1);
      
      sqlstr:='select count(*) from '||tableName||wText||oText;
      dbms_output.put_line(sqlstr);
      execute immediate sqlstr into counter;
   end;
end;

java中调用

                Class.forName("oracle.jdbc.driver.OracleDriver");
		Connection conn = DriverManager.getConnection(
				"jdbc:oracle:thin:@localhost:1521:orcl", "scott", "ronaldo");
		String callsql = "{call pagePack.procPage(?,?,?,?,?,?,?,?)}";
		OracleCallableStatement ocs = (OracleCallableStatement) conn
				.prepareCall(callsql);
		int i = 1;
		ocs.setString(i++, "product");
		ocs.setString(i++, "pname");
		ocs.setString(i++, null);
		ocs.setString(i++, null);
		ocs.setString(i++, "1");
		ocs.setString(i++, "2");
		ocs.registerOutParameter(7, oracle.jdbc.OracleTypes.CURSOR);
		ocs.registerOutParameter(8, Types.INTEGER);

		ocs.executeUpdate();
		ResultSet rs = ocs.getCursor(7);
		while (rs.next()) {
			System.out.println(rs.getString(2));
		}
		int sum = ocs.getInt(8);
		System.out.println("一共个数是" + sum);