oracle實現分頁與mysql實現分頁功能
阿新 • • 發佈:2019-02-06
1.oracle所用的sql語句
String sql = "select * from ( select t.*, ROWNUM RN from ( select * from tblmetadatainfo where 1=1 "; if ((!"".equals(fileName)) && fileName != null) { sql += " and backupRealName like '%" + fileName.trim() + "%'"; } if ((!"".equals(fromTime)) && fromTime != null) { sql += " and backupDate >= to_date('" + fromTime + " 00:00:00','yyyy-mm-dd hh24:mi:ss')"; } if ((!"".equals(endTime)) && endTime != null) { sql += " and backupDate<= to_date('" + endTime + " 23:59:59','yyyy-mm-dd hh24:mi:ss')"; } sql += "order by id desc ) t WHERE ROWNUM <= " + pagenum * 15 + ") WHERE RN >=" + (pagenum - 1) * 15 + " ";
pageNum是前臺傳遞來的頁碼,每頁有15個記錄
2.mysql所用的sql語句
sql="select * from usertablel where userid limit " +((pageNow-1)*pageSize)+","+pageSize;