The default length semantics for all datafiles (except UFT-16) is byte. So in your case you have a CHAR of 3500 bytes rather than characters. You have some multi-byte characters in your file and the 2624 characters is therefore using more than 3500 b…

alert 日志错误OER 7451 in Load Indicator : Error Code = OSD-04500:指定了非法选项 Sun Apr 22 11:15:51 2012 OER 7451 in Load Indicator : Error Code = OSD-04500: 指定了非法选项 O/S-Error: (OS 1) 函数不正确. ! OER 7451 in Load Indicator : Error Code = OSD-04500: 指定了非法选项 O/S-Er…

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…

https://stackoverflow.com/questions/54175042/python-3-7-anaconda-environment-import-ssl-dll-load-fail-error C:\Users\abhil\AppData\Local\Continuum\anaconda3\envs\HeisenbergPy37\python.exe "C:\Program Files\JetBrains\PyCharm Community Edition 2018.1.1…

要执行的sql 把csvload进db LOAD DATA LOCAL INFILE '/path/datas/temp.csv' INTO TABLE test_table_name FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY '\n' IGNORE 1 ROWS; 把客户端和server端 local_infile 都设置为True/ON # server端 mysql> SHOW VARIABLES LIK…

作者:jostree 转载请注明出处 http://www.cnblogs.com/jostree/p/4374404.html 1.读取UTF-8编码文本原理 首先了解UTF-8的编码方式,UTF-8采用可变长编码的方式,一个字符可占1字节-6字节,其中每个字符所占的字节数由字符开始的1的个数确定,具体的编码方式如下: U-00000000 - U-0000007F: 0xxxxxxx U-00000080 - U-000007FF: 110xxxxx 10xxxxxx U-00000800…

参考资料: http://dev.mysql.com/doc/refman/5.1/en/mysql-cluster-privilege-distribution.html http://www.clusterdb.com/mysql-cluster/sharing-user-credentials-between-mysql-servers-with-cluster/ http://blog.chinaunix.net/uid-20639775-id-294484.html -- ======…

Using innodb_large_prefix to avoid ERROR 1071        单列索引限制上面有提到单列索引限制767,起因是256×3-1.这个3是字符最大占用空间(utf8).但是在5.5以后,开始支持4个字节的uutf8.255×4>767, 于是增加了一个参数叫做 innodb_large_prefix.这个参数默认值是OFF.当改为ON时,允许列索引最大达到3072.       联合索引3072我们知道InnoDB一个page的默认大小是16k.由于是Bt…

Tomcat启动报错: 25-Mar-2016 10:40:43.478 SEVERE [main] org.apache.catalina.startup.Catalina.stopServer Could not contact localhost:8015. Tomcat may not be running.25-Mar-2016 10:40:43.478 SEVERE [main] org.apache.catalina.startup.Catalina.stopServer Cata…

AVAudioplayer 有两个初始化方法: 1.[[AVAudioPlayer alloc] initWithData:musicData error&e]; 2.[[AVAudioPlayer alloc] initWithContentsOfURL:fileURL error:&error]; 第一种是使用将音频文件的data文件初始化,但是data必须是一个完整的文件. 第二种是从url获取,但是这里的url是本地的file URL.    所以AVAudioplayer无法直接…