dede数据库操作方法有哪些

dedecms操作数据库的各类方法，二次开发都会用到的。

首先，引入common.inc.php文件

require_once (dirname(__FILE__) . “/include/common.inc.php”);

1、获取一条记录的内容：

$row = $dsql->GetOne(“Select * From dede_* where id = $aid”); echo $row[id];

2、将查询获取总数输出：

$row = $dsql->GetOne(“select count(*) as dd where typeid = $typeid”); echo $row[dd];//输出总数

3、将查询的若干条记录输出

$sql = “Select * from dede_*”; $dsql->SetQuery($sql);//将SQL查询语句格式化 $dsql->Execute();//执行SQL操作 //通过循环输出执行查询中的结果 while($row = $dsql->GetArray()){ echo $row[id]; echo $row[title]; } //或者采取这种方式输出内容 while($row = $dsql->GetObject()){ echo $row->id; echo $row->Title; }

4、将查询的若干条记录输出

$dsql->SetQuery(“Select id,typename From `dede_arctype` where reid=0 And channeltype=1 And ishidden=0 And ispart<>2 order by sortrank”); $dsql->Execute(); while($row=$dsql->GetObject()) { $channellist .= “{$row->typename} “; echo $row->id; }

5、插入一条记录

$sql = ” INSERT INTO `dede_member_flink`(mid,title,url,linktype,imgurl,imgwidth,imgheight) VALUES(“.$cfg_ml->M_ID.”,$title,$url,$linktype,$imgurl,$imgwidth,$imgheight);”;//插入记录数据库 $dsql->ExecuteNoneQuery($sql);//执行SQL操作 $gid = $dsql->GetLastID();//获取刚刚插入的id

6、删除一条记录

$sql = “Delete From dede_member_flink where aid=$aid And mid=”.$cfg_ml->M_ID.”;”; $dsql->SetQuery($sql); $dsql->ExecNoneQuery(); //或者使用简化模式 $dsql->ExecNoneQuery(“Delete From dede_member_flink where aid=$aid And mid=”.$cfg_ml->M_ID.”;”);

7、更新一条记录

$upquery = ” Update dede_member_flink set title=$title,url=$url,linktype=$linktype, imgurl=$imgurl,imgwidth=$imgwidth,imgheight=$imgheight where aid=$aid And mid=”.$$cfg_ml->M_ID.”; “; $rs = $dsql->ExecuteNoneQuery($upquery);

8、判断获取数据库内容的常用方法

$row = $dsql->GetOne(“Select * From dede_moneycard_type where tid={$pid}”); if(!is_array($row)){ echo “失败”; exit(); } $upquery = ” Update dede_member_flink set title=$title,url=$url,linktype=$linktype, imgurl=$imgurl,imgwidth=$imgwidth,imgheight=$imgheight where aid=$aid And mid=”.$cfg_ml->M_ID.”; “; $rs = $dsql->ExecuteNoneQuery($upquery); if($rs){ echo “成功”; }else{ echo “失败”; }

9、获取总数

$dsql = new DedeSql(false); $dsql->SetQuery(“Select * from `dede_admin` where userid=$userid Or uname=$uname”); $dsql->Execute(); $ns = $dsql->GetTotalRow(); 关闭数据库 $dsql->Close();