织梦cms网站sql数据库操作使用方法

织梦dedecms的数据库操作类，非常实用，在二次开发中尤其重要，这个数据库操作类说明算是奉献给大家的小礼物了。引入common.inc.php文件。require_once (dirname(__FILE__) . "/include/common.inc.php");获取一条记录的内容$row = $dsql->GetOne("Select * From dede_* where id = $aid");echo $row['id'];

将查询获取总数输出$row = $dsql->GetOne("select count(*) as dd where typeid = $typeid");echo $row['dd'];//输出总数。将查询的若干条记录输出。$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 $row->Title;}将查询的若干条记录输出dedecms5$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;}

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$dsql->SetQuery($sql);//格式化查询语句$dsql->ExecNoneQuery();//执行SQL操作。

经实践证明，上面的语句不能正常插入数据库，下面是正确的语句$sql = "INSERT INTO `dede_member_flink`(mid,title,url,linktype,imgurl,imgwidth,imgheight)VALUES(".$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

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."';");

更新一条记录$upquery = "Update dede_member_flink settitle='$title',url='$url',linktype='$linktype',imgurl='$imgurl',imgwidth='$imgwidth',imgheight='$imgheight'where aid='$aid' And mid='".$cfg_ml->M_ID."';";$rs = $dsql->ExecuteNoneQuery($upquery);

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 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 "失败";}

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();