废话不多说,直接上代码
<"localhost", "root", "root"); $dbname = "db"; if ($con) { if (mysql_select_db($dbname, $con)) { $sql = "show tables like 'pre_tb_%'"; $ret = mysql_query($sql); while($row = mysql_fetch_assoc($ret)){ $info1[] = $row; } foreach ($info1 as $v) { $chidarr1[] = substr($v['Tables_in_multiopen (pre_tb_%)'],7);//获取标记号 } foreach ($chidarr1 as $val) { $tabname = 'stat_adclick_'.$val; $sql = "alter table $tabname add column c2 int default 0 after p"; mysql_query($sql); $sql = "alter table $tabname DROP PRIMARY KEY"; mysql_query($sql); $sql = "alter table $tabname add primary key(c2,p)"; mysql_query($sql); $sql = "alter table $tabname drop index old_index"; mysql_query($sql); $sql = "create index idx_newincex on $tabname (c2,p)"; mysql_query($sql); } } } mysql_close($con); ?>
以上这篇php批量修改表结构实例就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持。
标签:
php,批量修改表结构
免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件!
如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
桃源资源网 Design By www.nqtax.com
暂无“php批量修改表结构实例”评论...