环境：wndows server2008 ,mysql5.6
问题：在mysql workbench 6.1中准备给一个表增加字段时出现以下错误：
ERROR 7: Error on rename of '.\we7wq3\ims_shopping_goods.MYI' to '.\we7wq3\#sql2-43c-2d1.MYI' (Errcode: 13 - Permission denied)
SQL Statement:
ALTER TABLE `we7wq3`.`ims_shopping_goods`
ADD COLUMN `iszhekou` INT(11) NULL DEFAULT 0 AFTER `deleted`
ERROR: Error when running failback script. Details follow.
ERROR 1050: Table 'ims_shopping_goods' already exists
SQL Statement:
CREATE TABLE `ims_shopping_goods` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`weid` int(10) unsigned NOT NULL,
`pcate` int(10) unsigned NOT NULL DEFAULT '0',
`ccate` int(10) unsigned NOT NULL DEFAULT '0',
`type` tinyint(1) unsigned NOT NULL DEFAULT '1' COMMENT '1为实体，2为虚拟',
`status` tinyint(1) unsigned NOT NULL DEFAULT '1',
`displayorder` int(10) unsigned NOT NULL DEFAULT '0',
`title` varchar(100) NOT NULL DEFAULT '',
`thumb` varchar(255) DEFAULT '',
`unit` varchar(5) NOT NULL DEFAULT '',
`description` varchar(1000) NOT NULL DEFAULT '',
`content` text NOT NULL,
`goodssn` varchar(50) NOT NULL DEFAULT '',
`productsn` varchar(50) NOT NULL DEFAULT '',
`marketprice` decimal(10,2) NOT NULL DEFAULT '0.00',
`productprice` decimal(10,2) NOT NULL DEFAULT '0.00',
`costprice` decimal(10,2) NOT NULL DEFAULT '0.00',
`total` int(10) NOT NULL DEFAULT '0',
`totalcnf` int(11) DEFAULT '0' COMMENT '0 拍下减库存 1 付款减库存 2 永久不减',
`sales` int(10) unsigned NOT NULL DEFAULT '0',
`spec` varchar(5000) NOT NULL,
`createtime` int(10) unsigned NOT NULL,
`weight` decimal(10,2) NOT NULL DEFAULT '0.00',
`credit` int(11) DEFAULT '0',
`maxbuy` int(11) DEFAULT '0',
`hasoption` int(11) DEFAULT '0',
`dispatch` int(11) DEFAULT '0',
`thumb_url` text,
`isnew` int(11) DEFAULT '0',
`ishot` int(11) DEFAULT '0',
`isdiscount` int(11) DEFAULT '0',
`isrecommand` int(11) DEFAULT '0',
`istime` int(11) DEFAULT '0',
`timestart` int(11) DEFAULT '0',
`timeend` int(11) DEFAULT '0',
`viewcount` int(11) DEFAULT '0',
`deleted` tinyint(3) unsigned NOT NULL DEFAULT '0',
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=6 DEFAULT CHARSET=utf8
