smarty?SQL
public functions getName(){ $sql=sprintf("select pin,point from table"); $results = array(); if(!$error=$this->db->query($sql)) { $name = $this->getSn($results['pin']); $this->hlist[] = $results; } $this->db->free(); $this->db2->free(); return $this->hlist;}public function getSn($pin){ $sql = sprintf("SELECT sn FROM `%s_pin` WHERE pin=%s",__MYSQL_PREFIX,$pin); return $this->db2->get_one($sql);}
在sql执行过程中执行另一条sql.原本getSn里的db2是写成db,但发现查出来的数据只有1条,所以才加个db2
现在sql是没问题了,但打开页面的时间好久,请问要怎么优化??
回复讨论(解决方案)
$this->db2-> get_one($sql)
从方法的命名上看,就是取一条记录
$this->db2-> get_one($sql)
从方法的命名上看,就是取一条记录
Table
series(数据表): id(字段) name
category: id seriesid name
$sql=sprintf("select id,seriesid,name from category"); if(!$error=$this->db->query($sql)) { $name = $this->getName($results['seriesid']); $results['seriesid']=$name['name']; $this->hlist[] = $results; } return $this->hlist;//我想把从category表里读取出来的seriesid替换成对应的名字//但是用这种方法,在页面打开的时候要等很久,请问可以怎么优化??function getName($seriesid){ $sql=sprintf("select name from series where id=$seriesid"); return $this->db2->get_one($sql);}
你确定页面慢是这段代码的问题吗?
自己先检查一下看是哪里慢。

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