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  Oracle database to execute multiple statements at command line

Oracle database is now a mature and popular RDBMS which is used by lots of enterprises. With its evolution, many utilities and applications are developed around it as well. Now Oracle database also provides cloud support. As a DBA, managing Oracle database is daily routine work and some tools may be used frequently. One of them is sqlplus, the command line tool for executing SQL command. sqlplus is installed while the Oracle database is installed. To start sqlplus, one just needs to open a termi...

   ORACLE,ORACLE DATABASE,SQLPLUS     2016-12-09 20:11:28

  Linux Clock : CST,UTC and NTP setup

1. There is an option when you set up clock on installing Linux: system clock users UTC, so what does UTC mean? It's Universal Time Coordinated(UTC), there are two different times in GPS system: one is UTC , the other one is LT(Local Time). The difference between these two is just the timezone difference, UTC is the time in timezone 0. If the local time in Beijing is 8 o'clock in the morning, then UTC time is 0 o'clock, which is a 8 hour difference. 2. In Linux, when we use date to check the tim...

   Linux,Clock,UTC     2013-03-21 12:19:30

  Resolve SystemStackError issue when resolving IP address in Ruby

In Ruby, Resolv is the default DNS resolution implementation. It can be used to resolve IP address of a hostname. To use it, one just needs to require 'resolv' in the code. But sometimes, a user would want to check /etc/hosts first or some other mechanisms to resolve an IP address. In this case, one can require 'resolv-replace' and then replace the default DNS resolvers with customized DNS resolvers. For example, using resolv-replace, one would write require 'resolv-replace' Resolv::DefaultResol...

   RUBY,RUBY ON RAILS,NETWORK     2017-07-08 09:54:35

  10 happiest tech companies in 2013

According to Tencent Tech, CareerBliss released a list of happiest tech company in America in 2013. Intuit is the happiest tech company in America in 2013. While Google which is widely considered as a best company to work for only ranks 4th place. Let's take a look at the top 10 happiest tech companies. 1. Intuit Happiness index : 4.27 Average salary: $77000 Don't think it's boring to work in a company which focus on software development, in contrast it's very interesting to work in Intuit. Bec...

   CareerBliss,Happiest tech company     2013-04-18 12:33:43

  Use of Erlang in WhatsApp

After many years, people are still discussing whether Erlang is a small language. People have all sorts of doubt about it, but with the appearance of WhatsApp, we may change our mind. What is WhatsApp, from its official website: WhatsApp Messenger is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS. The more funny thing is the main developer of WhatsApp Rick Reed worked in Yahoo and SGI before he joined WhatsApp and he didn't have any know...

   Erlang,WhatsApp,Architecture     2013-06-16 03:03:46

  What can .htaccess file do?

A .htaccess file is a directory-level configuration file supported by several web servers, that allows for decentralized management of web server configuration. What can a .htaccess file do? We summarized some of them here.  Hope it may help you. 1. Timezone settingSometimes when you use date() or mktime() functions in PHP, , it may display some weird information because of the timezone difference. For example, one possible warning is :Warning: date(): It is not safe to rely on the syste...

   .htaccess,setting,tip     2012-06-15 06:39:39

  PHP to get long running process progress dynamically

Frequently in web applications, we may have a request to the back end system which may trigger a long running process such as searching huge amount of data or a long running database process. Then the front end webpage may hang and wait for the process to be finished. During this process, if we can provide the user some information about the progress of the back end process, it may improve user experience. Unfortunately, in web applications, this seems not an easy task because web scripting lang...

   AJAX,PHP,progress,long process,demo     2012-06-04 07:29:37

  Google open sources its Collaborative IDE

July 9, 2012 news, Google engineer Scott Blum published an article on Google+ which revealed that Google would open source the Collaborative IDE. The project was named "Collide" (collaborative IDE), which is a Web collaborative code editor. Google hopes that Collide can serve as a catalyst for improving the state of web-based IDEs.Caution Collide does not have any proper auth, SSL support, or user account management just yet. Please consider that fact when running instances that expose important...

   Google,Open source,Collide IDE     2012-07-09 10:55:20

  How to choose JavaScript template engine?

With the increase of density of web front end development, AJAX and JSON are used more and more frequently, it's necessary to use many tags in front end development. You may have a JSON object as below: var data={  email: 'terry.li@gbin1.com,  gender: 'male'  } Then you need to organize the JSON data into page elements. var email, gender;email= ' ' + data.email+ '; gender= ' ' + data.gender + '; $('#contentwrapper‘).append(content).append(gender); The output is very simple: ...

   JavaScript template engine,Template     2012-10-07 07:03:58

  Upgrade phpMyAdmin Version in WAMP

Once PHP version is upgraded in WAMP(especially from PHP 5 to PHP 8), we may encounter issue where phpMyAdmin may not work anymore. It needs us to make some upgrade of phpMyAdmin in this case. To do upgrade, can follow below steps. Download the latest phpMyAdmin version. Unzip the downloaded file and copy it to c:\wamp64\apps and rename it to phpmyadminx.y.z, the version you downloaded. Copy the config.inc.php file from the old phpMyAdmin folder to the new one. Update the alias of Apache s...

   WAMP,PHPMYADMIN,UPGRADE,GUIDE,PHP 8     2024-11-28 00:55:42

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