下文为您介绍DB2分页的脚本,供您参考学习,如果您对DB2分页方面感兴趣的话,不妨一看,相信对您学习DB2分页会有所启迪。
- String sqlcount="select count(*) from stu.book "+condition;
- System.out.println(sqlcount);
- int curPage; //当前需要显示的页码
- int totalPages; //总页数
- int pageRecord=10; //每页要显示的记录条数
- int totalRecords; //满足条件的总共的记录条数
- if(CPage!=null ){
- curPage =Integer.parseInt(CPage);
- if(curPage<1){
- curPage=1;
- }
- }else{
- curPage=1;
- }
- Connection con=Dao.getConn(); //获取数据库连接
- try {
- ps=con.prepareStatement(sqlcount);
- rs=ps.executeQuery();
- if(rs.next()){
- totalRecords=rs.getInt(1);
- if(totalRecords%pageRecord==0)
- totalPages=totalRecords/pageRecord;//当每页显示的记录条数能被总记录条数整除时 总页数为总记录条数除以每页显示的记录条数
- else
- totalPages=totalRecords/pageRecord+1;//当每页显示的记录条数不能被总记录条数整除时 总页数为总记录条数除以每页显示的记录条数的商再加1
- String sql;
- if(curPage==1){
- sql="select * from stu.book "+condition+" FETCH FIRST "+ pageRecord+" ROWS ONLY";
- }else{
- sql="select * from stu.book "+condition+" and booknum not in ( select booknum from stu.book "+condition+" FETCH FIRST "+(curPage-1)*pageRecord+" ROWS ONLY )"+" FETCH FIRST "+ pageRecord+" ROWS ONLY";
- }
- System.out.println(sql);
- ps=con.prepareStatement(sql);
- rs=ps.executeQuery();
- while(rs.next()){
- Book b=new Book();
- b.setBooknum(rs.getString(1));
- b.setBookname(rs.getString(2));
- b.setBookindate(rs.getString(3));
- b.setBorrower(rs.getString(4));
- b.setLenddate(rs.getString(5));
- b.setRemark(rs.getString(6));
- al.add(b);
- }
- }else{
- return al;
- }
- } catch (SQLException e1) {
- e1.printStackTrace();
- }
- return al;
以上就是DB2分页的实现方法。
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