假设表的名称为A,记录条数据为未知. 各个问题最好用一条SELECT 实现 1.取出表中前10条记录.(按物理逆序又应如写) 2.取出表中的后10条记录.(按物理逆序又应如写) 3.取出表中第10条到第20条记录.(按物理逆序又应如写) 4.取出表中的所用记录,并加上两列分别是行号及物理行号. --------------------------------------------------------------- 1、select * from a limit 0,9 2、select top(10) from a order by id desc 3、select * from a limit 9,19 --------------------------------------------------------------- CREATE TABLE sort ('Col1' INT (3) UNSIGNED NOT NULL, 'Col2' CHAR (1) NOT NULL, PRIMARY KEY (Col1),INDEX Col2 (Col2)); INSERT INTO sort (Col1, Col2) VALUES (1, 'A'); INSERT INTO sort (Col1, Col2) VALUES (2, 'C'); INSERT INTO sort (Col1, Col2) VALUES (3, 'B'); INSERT INTO sort (Col1, Col2) VALUES (4, 'D'); INSERT INTO sort (Col1, Col2) VALUES (5, 'F'); INSERT INTO sort (Col1, Col2) VALUES (6, 'E'); INSERT INTO sort (Col1, Col2) VALUES (7, 'H'); INSERT INTO sort (Col1, Col2) VALUES (8, 'G'); INSERT INTO sort (Col1, Col2) VALUES (9, 'K'); INSERT INTO sort (Col1, Col2) VALUES (10, 'J'); INSERT INTO sort (Col1, Col2) VALUES (11, 'L') INSERT INTO sort (Col1, Col2) VALUES (12, 'I'); INSERT INTO sort (Col1, Col2) VALUES (13, 'N'); INSERT INTO sort (Col1, Col2) VALUES (14, 'M'); SELECT * FROM Table1 Limit 0,10; #按物理顺序取前10个 SELECT * FROM Table1 Limit 10,10; #按物理顺序从第10开始取10个 取后几个，要先查询了总记录数 SELECT Count(*) As Count FROM Table1; 然后在自己程序里处理成如上所示的SQL 至于按物理顺序逆序取， 呵呵， ：《 --------------------------------------------------------------- $sql = "select cardid,company,name from namecard where"; ...... $sql .= " limit $offset,10"; $result2 = mysql_query($sql); while ($row = mysql_fetch_array($result2)) { show_card($row); } $pages = ceil($num/10); echo ""; echo "(共{$pages}页)\n\n\n"; if($offset>=10) //$offset大于9，在第二页面以上就会显示前一页 { $preoffset = $offset-10; echo "前一页 \n"; } for ($i=1; $i <= $pages; $i++) { $newoffset=10*($i-1); echo "[$i] \n"; } if ($pages!=0 && ($offset/10+1)<$pages) { echo "下一页 \n"; } echo "";
select * from a limit 1,10select * from a limit 11,10