$sqlForm=$sqlForm.limit .($page-1)*$page_size .,$page_size ;
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$sqlForm=$sqlForm.limit .($page-1)*$page_size .,$page_size ; 这个limit 有什么用,怎么去掉这个limi
limit换成top
limit换成top
设requestRecord为页号,pageRecord为每页行数,NEWS_ID无充复值,则:
以下是最好的分页方法(比TOP效率要高,且不易出错):
String sql="
SELECT * FROM t_news t1 WHERE
(SELECT count(1) FROM t_news t2 WHERE t2.news_id < t1.news_id )
>=("+requestRecord+"-1)*"+pageRecord+"+1
AND (SELECT count(1) FROM t_news t2 WHERE t2.news_id < t1.news_id ) < "+requestRecord+"*"+pageRecord+"+1"
以下是最好的分页方法(比TOP效率要高,且不易出错):
String sql="
SELECT * FROM t_news t1 WHERE
(SELECT count(1) FROM t_news t2 WHERE t2.news_id < t1.news_id )
>=("+requestRecord+"-1)*"+pageRecord+"+1
AND (SELECT count(1) FROM t_news t2 WHERE t2.news_id < t1.news_id ) < "+requestRecord+"*"+pageRecord+"+1"
$sqlForm=$sqlForm.limit .($page-1)*$page_size .,$page_size ;
PHP:$page=isset($_GET["page"])?$_GET["page"]:1; 求详解
order by Phone_Number desc limit limit 1
limit
page
SequenceTime Limit:1 Sec Memory Limit:128 MBSubmissions:254
{dede:arclist flag='h' limit='0,1' infolen='230'}中infolen='2
{dede:arclist flag='h' limit='1,4'}中“flag='h'”是什么意思?作用是什么?
rs.pagesize=iCount-(page-1)*rs.pagesize这句话是什么意思?
AND-tube&page=4是什么意思
(1) (2) (3) (4)my home page
1.若limit X趋近于无穷 (1-k/x)^x=e^3 ,那么K=_________________