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Getting “Lock wait timeout exceeded; try restarting transaction” even though I'm not using a transac

I'm running the following MySQL UPDATE statement: 17 Answers 17 ...
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When to use Hadoop, HBase, Hive and Pig?

...ru some SQL like language To replace daily aggregation data generated thru MySQL with Hive Build Custom reports thru queries in Hive Architecture Options I benchmarked the following options: Hive+HDFS Hive+HBase - queries were too slow so I dumped this option Design Daily log Files were tr...
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Using a .php file to generate a MySQL dump

... done by the command itself. That external command will : be a call to mysqldump, with the right parameters, and redirect the output to a file. For example : mysqldump --user=... --password=... --host=... DB_NAME > /path/to/output/file.sql Which means your PHP code would look like this...
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Comparison of full text search engine - Lucene, Sphinx, Postgresql, MySQL?

...some benchmarks. Could be useful, I guess. I've not plumbed the depths of MySQL's full-text search, but I know it doesn't compete speed-wise nor feature-wise with Sphinx, Lucene or Solr. share | im...
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Create a new database with MySQL Workbench

Being new to MySQL, I have installed the latest version of the MySQL Workbench (5.2.33). I would like to know how you can create a database with this application. In the Overview tab of the SQL editor there are few "MySQL Schema" displayed, are these schemas the existing databases? ...
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智能手机图形解锁有多少种可能 - 创意 - 清泛网 - 专注C/C++及内核技术

...这个人的个人网站也不错,http://www.matrix67.com/ Android 的密码是 3 × 3 点阵中的一条路径,这条路径可以交叉,可以“走日字”,几乎是无所不能(只要不经过重复点),但却有一个例外:路径不允许跳过途中必须要经过的点...
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Linux编程中各种头文件 - C/C++ - 清泛网 - 专注C/C++及内核技术

...h> #include <fcntl.h> #include <fcntl.h> 涉及到用户权限及密码验证问题时加入如下语句: #include <shadow.h> #include <crypt.h> #include <pwd.h> 需要注意的是,应该在编译时链接加密算法库,即增加编译选项: -lcrypt 涉及到文件...
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git使用代理服务器,提升git速度 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...要鉴权的代理设置,如果需要鉴权,可能需要添加用户名密码信息: git config http.proxy http://username:password@127.0.0.1:8088 如果git的所有项目都需要启用代理,那么可以直接启用全局设置: git config --global http.proxy http://127.0.0.1:8088...
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支付宝现“幽灵账户” 业内:不必太过惊慌 - 资讯 - 清泛网 - 专注IT技能提升

...料”,就是通过木马软件拦截的全国各地的支付宝账户、密码、绑定的手机号码、身份证号等信息。 对于支付宝用户来说,如果已通过实名认证,最好申请使用数字证书。只有在安装了数字证书的电脑上,才可以对支付宝账户...
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理解分布式和区块链技术 - 资讯 - 清泛网 - 专注C/C++及内核技术

...易的一个主要目的是将所有金融资产分散化,并允许通过密码学加密所有的人都可以发布的货币和各种金融资产。任何人都可以在开放的交易中创建数字标记,这些标记代表实际的价值。这个最具创新的特性是一旦某人发布了这...