我想很多朋友会碰到在利用phpmyadmin导入数据时会出现You probably tried to upload too large file. Please refer to documentation for ways to workaround this limit.这类提示,下面我总结了解决办法。
有服务器管理权限修改php.ini文件
在php.ini配置文件中查找以下三个地方:
upload_max_filesize, memory_limit 和post_max_size
修改其值大于被导入的数据库文件即可(至此配置完成)
upload_max_filesize = 8M (上传最大极限设定为8M,这个应该足够一般的文件WEB上传了)
memory_limit = 512M (因为服务器的内存为2GB,所以这里加到512M不过份吧,呵)
post_max_size = 8M (Post数据最大也设置为8MB,这个跟upload_max一样)
3、重启php环境
phpmyadm错误提示:You probably tried to upload too large file. Please refer to documentation for ways to workaround this limit。
原来用phpmyadmin导入mysql数据库时,默认mysql数据库最大只能导入2M,解决方法如下:
大多数情况都是修改PHP5文件夹下面的php.ini中的upload_max_filesize,但修改了这个以后,还是提示这个问题;
那么更改如下几处:
修改 PHP.ini
file_uploads on 是否允许通过HTTP上传文件的开关。默认为ON即是开
upload_tmp_dir – 文件上传至服务器上存储临时文件的地方,如果没指定就会用系统默认的临时文件夹
upload_max_filesize 20m 望文生意,即允许上传文件大小的最大值。默认为2M
post_max_size 30m 指通过表单POST给PHP的所能接收的最大值,包括表单里的所有值。默认为8M
说明
一般地,设置好上述四个参数后,在网络正常的情况下,上传8M的大体积文件,只设置上述四项还一定能行的通。除非你的网络真有100M/S的上传高速,否则你还得继续设置下面的参数,那就是设置它的时间,
max_execution_time 300 每个PHP页面运行的最大时间值(秒),默认30秒
max_input_time 300 每个PHP页面接收数据所需的最大时间,默认60秒
memory_limit 80m 每个PHP页面所吃掉的最大内存,默认8M,如果你机子的内存足够大的话,还可以设置大点儿
设定 POST 数据所允许的最大大小。此设定也影响到文件上传。要上传大文件,该值必须大于 upload_max_filesize。
如果配置脚本中激活了内存限制,memory_limit 也会影响文件上传。通常说,memory_limit 应该比 post_max_size 要大。
如果你没有权限修改,我们可以尝试
phpmyadmin是个很方便的mysql数据库管理工具,可以用来管理mysql数据库,导入,导出等。
但是phpmyadmin在导入mysql的时候有个问题,如果要导入的数据库文件比较大,那么导入就会失败。下面教大家一个简单有效的办法,可以导入任意大小的mysql数据库,理论上不论您的数据库备份文件多大,都可以导入。
方法如下:
1.将数据库备份文件(如backup.sql)上传至网站根目录。
2.将以下代码保存为mysql.php文件,上传至网站根目录。
system(“mysql
-hdbhost -udbuser -ppassword dbname
其中
dbhost
改为您的数据库服务器地址(小提示:一般主机默认数据库服务器地址是:localhost)
dbuser 改为您的数据库用户名
password
改为您的数据库用户密码
dbname
改为您的数据库名
backup.sql表示通过ftp上传到网站根目录下数据库文件的文件名(该文件是解压缩后的文件)

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MySQLstringtypesincludeVARCHAR,TEXT,CHAR,ENUM,andSET.1)VARCHARisversatileforvariable-lengthstringsuptoaspecifiedlimit.2)TEXTisidealforlargetextstoragewithoutadefinedlength.3)CHARisfixed-length,suitableforconsistentdatalikecodes.4)ENUMenforcesdatainte

MySQLoffersvariousstringdatatypes:1)CHARforfixed-lengthstrings,2)VARCHARforvariable-lengthtext,3)BINARYandVARBINARYforbinarydata,4)BLOBandTEXTforlargedata,and5)ENUMandSETforcontrolledinput.Eachtypehasspecificusesandperformancecharacteristics,sochoose

TograntpermissionstonewMySQLusers,followthesesteps:1)AccessMySQLasauserwithsufficientprivileges,2)CreateanewuserwiththeCREATEUSERcommand,3)UsetheGRANTcommandtospecifypermissionslikeSELECT,INSERT,UPDATE,orALLPRIVILEGESonspecificdatabasesortables,and4)

ToaddusersinMySQLeffectivelyandsecurely,followthesesteps:1)UsetheCREATEUSERstatementtoaddanewuser,specifyingthehostandastrongpassword.2)GrantnecessaryprivilegesusingtheGRANTstatement,adheringtotheprincipleofleastprivilege.3)Implementsecuritymeasuresl

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