PinnedJeffrey ChenAlgorithms and Data Structures — Solutions for the problems on LeetCode and HackerRankMany companies like to ask interviewees some Algorithms and Data Structures problems to check the programming skills in the interview…Aug 1, 2021Aug 1, 2021
Jeffrey ChenDatabase — How to use the index in the SQL queryIndexes could be used for enhancing the SQL query performance, and user can build multiple indexes for a table. Then, how the query engine…Jul 29, 2021Jul 29, 2021
Jeffrey ChenDatabase — Different kinds of IndexWhen you want to look up a word in the dictionary, you could use index page to find it out quickly. Database index is same idea, you can…Jul 19, 2021Jul 19, 2021
Jeffrey ChenSource Code Tracing — Enable CORS in Spring BootCross-origin resource sharing (CORS) is a mechanism that allows a web page to request some resources in different domains. If you are…Jan 30, 2021Jan 30, 2021
Jeffrey ChenSoftware Testing SummaryTesting is the process with the intention of finding defects in your system. Integrate right test in right development stage can help you…Dec 27, 2020Dec 27, 2020
Jeffrey ChenCode Analysis Tool Integration Practice — Integrate SonarQube with JenkinsAfter you installed the SonarQube Server and integrated Sonar Scanner with your projects, you may want the code analysis step be executed…Aug 2, 2020Aug 2, 2020
Jeffrey Chen[日本生活]如何用台灣駕照換日本駕照只要在台灣監理所申請駕照的日文譯本，你就可以在日本租車和駕駛，但是如果你在日本待超過一年，就不能再使用譯本了，這時候你就需要拿著你的台灣駕照去日本各地的運転免許センター換日本駕照。Jul 21, 2020Jul 21, 2020
Jeffrey ChenSource Code Tracing — ResourceServerConfigurerAdapter and WebSecurityConfigurerAdapterYou can easily launch the Resource Server by the Spring Security and you can change some default configuration by…Jul 18, 2020Jul 18, 2020
Jeffrey ChenSource Code Tracing — Spring Security OAuth Config / Exception HandlingIf you have spring-security-oauth2 on your classpath, it’s easy to set up Resource Server by auto-configuration. But I would like to…Jul 12, 2020Jul 12, 2020
Jeffrey ChenCode Analysis Tool Integration Practice — Integrate SonarQube with your React/npm projectSonar do NOT provide the npm Sonar Scanner officially, however we still can find an unofficial one to help us to integrate SonarQube with…Jun 28, 2020Jun 28, 2020
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