In a server-rendered application, if you attempt to load data before the page renders and the data fails to load, your application will not run unless you handle the error properly. This lesson walks you through the options of handling load errors so…

You'll begin to notice as you build out your actions in Vuex, many of them will look quite similar. Creating a remove action looks almost the same as the add action except for using the axios.delete method then filtering out the deleted todo once the…

解决方案: http://stackoverflow.com/questions/26256421/sql-load-data-infile-utf8-issue 即: load data local infile '/path/to/sqlfile' into table xxx character set utf8 fields terminated by ',' lines terminated by '\n'; into table xxx 后紧接着指定字符集 character set…

Mybatis 拦截器不做解释了,用过的基本都知道,这里用load data local主要是应对大批量数据的处理,提高性能,也支持事务回滚,且不影响其他的DML操作,当然这个操作不要涉及到当前所load的数据,其中在使用的时候一定要local , 这个命令使用是mysql规定的,否则不加则会认为是服务器本地的文件.这里主要是以流的方式来做处理,这样可以使用内存流,这样就可以避免在某些时候需要生成文件才能导入的多余操作,和IO性能消耗.也可以是应用本地的文件. 注:该做法只试用于存入数据的表,不…

新学mysql在用load data导入txt文档时发现导入的内容,select 之后是乱码,先后把表,数据库的字符集类型修改为utf8,但还是一样,最后在 http://bbs.chinaunix.net/thread-3761449-1-1.html 发现问题,导入的文档不是utf8类型的. load data local  infile 'c:\\data.txt' into table person2 character set utf8  (name,age,city,salary);…

LOAD DATA [LOW_PRIORITY | CONCURRENT] [LOCAL] INFILE 'file_name.txt' [REPLACE | IGNORE] INTO TABLE tbl_name [FIELDS [TERMINATED BY 'string'] [[OPTIONALLY] ENCLOSED BY 'char'] [ESCAPED BY 'char' ] ] [LINES [STARTING BY 'string'] [TERMINATED BY 'string…

1.load data: ***实际应用:把日志生成的xls文件load到MySQL中: mysql_cmd = "iconv -c -f utf-8 -t gbk ./data/al_ver_" + yesterday_time + ".xls -o ./data/GBK_al_ver_" + yesterday_time + ".xls " print(mysql_cmd) os.system(mysql_cmd) mysql_cmd = &…

load data local infile 'd:/1.txt' into table tcm.wm_dis_category fields terminated by';' lines terminated by'\r\n' (name,parent_id,pinyin)…

利用load data将文件中的数据导入数据库表中的时候,遇到了两个问题. 首先是load data命令无法执行的问题: 命令行下输入load data local infile "path/filename" to table table_name: 系统提示:ERROR 1148 (42000): The used command is not allowed with this MySQL version. 解决方法:退出mysql, 重新以此命令登录mysql mysql -u…

有一份csv格式的文件,大小在14G左右.max_binlog_cache_size=4G. 登录mysql实例,选择对应的表通过load data往指定表里导数.大概20分钟左右,报以下错误: ERROR 1197 (HY000) at line 2: Multi-statement transaction required more than 'max_binlog_cache_size' bytes of storage; increase this mysqld variable and…