dedecms操作數據庫的各類方法，二次開發都會用到的。

首先，引入common.inc.php文件

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

1、獲取一條記錄的內容：

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

2、將查詢獲取總數輸出：

$row = $dsql->GetOne("select count(*) as dd where typeid = $typeid");echo $row['dd'];//輸出總數

3、將查詢的若干條記錄輸出

$sql = "Select * from dede_*";$dsql->SetQuery($sql);//將SQL查詢語句格式化$dsql->Execute();//執行SQL操作//通過循環輸出執行查詢中的結果while($row = $dsql->GetArray()){echo $row['id'];echo $row['title'];}//或者采取這種方式輸出內容 while($row = $dsql->GetObject()){echo $row->id;echo $row->Title;}

4、將查詢的若干條記錄輸出

$dsql->SetQuery("Select id,typename From `dede_arctype` where reid=0 And channeltype=1 And ishidden=0 And ispart<>2 order by sortrank");$dsql->Execute();while($row=$dsql->GetObject()){ $channellist .= "<a href='wap.php?action=list&id={$row->id}'>{$row->typename}</a> "; echo $row->id;}

5、插入一條記錄

$sql = "INSERT INTO `dede_member_flink`(mid,title,url,linktype,imgurl,imgwidth,imgheight)VALUES(".$cfg_ml->M_ID.",'$title','$url','$linktype','$imgurl','$imgwidth','$imgheight');";//插入記錄數據庫$dsql->ExecuteNoneQuery($sql);//執行SQL操作$gid = $dsql->GetLastID();//獲取剛剛插入的id

6、刪除一條記錄

$sql = "Delete From dede_member_flink where aid='$aid' And mid='".$cfg_ml->M_ID."';";$dsql->SetQuery($sql);$dsql->ExecNoneQuery();//或者使用簡化模式$dsql->ExecNoneQuery("Delete From dede_member_flink where aid='$aid' And mid='".$cfg_ml->M_ID."';");

7、更新一條記錄

$upquery = "Update dede_member_flink settitle='$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、判斷獲取數據庫內容的常用方法

$row = $dsql->GetOne("Select * From dede_moneycard_type where tid={$pid}");if(!is_array($row)){echo "失敗";exit();}$upquery = " Update dede_member_flink settitle='$title',url='$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 "失敗";}

9、獲取總數

$dsql = new DedeSql(false);$dsql->SetQuery("Select * from `dede_admin` where userid='$userid' Or uname='$uname'");$dsql->Execute();$ns = $dsql->GetTotalRow();關閉數據庫$dsql->Close();