phpmyadmin
使用phpMyadmin导入数据库的时候，因为脚本在上传的时候响应时间过长，导致大于2M的数据偶尔会导入失败。而且大多数默认设置，只能导入2M的数据。
遇到这种情况
我们可以修改PHP.ini以及import.php对应的$memory_limit大小限制。还可以直接导入服务器上任意大小的SQL文件。
这里说一下第二个方法：
首先，打开phpMyAdmin根目录下的config.inc.php文件，然后找到
$cfg['UploadDir']
修改为
$cfg['UploadDir'] = ‘ck-import’
然后通过FTP将数据库上传到ck-import文件夹。
保存代码后，在phpMyadmin的后台操作页面会多出来一个(web server upload directory)。在下拉列表里面选择你需要导入的数据库，就可以导入大文件了。
root@119.10.*.23:/data/htdocs/tools.justwinit.cn/phpmyadmin# vi ./libraries/config.default.php
修改php配置文件,php.ini
upload_max_filesize = 100M
post_max_size = 100M
一般修改这2个就行了，然后重启wampserver
如果还不行，就执行下面的配置
max_execution_time（php页面执行最大时间）、max_input_time（php页面接受数据最大时间）、memory_limit（php页面占用的最大内存） 配置这3个，尽量大点，还不行，修改phpmyadmin配置文件
phpmyadmin config配置文件中的$cfg['ExecTimeLimit']配置选项，默认值是300，需要修改为0，即没有时间限制
修改phpmyadmin安装根目录下的import页面中的$memory_limit
来自：http://284772894.iteye.com/blog/1990031
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