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Race condition in Web Application: Be aware and prevent it

June 24, 2015Nguyen Huy Tuan TechNote No Comment

What is race condition Race conditions arise in software when an application depends on the sequence or timing of processes or threads for it to operate properly – wikipedia Examples Let’s look at these 2 examples: Supposing we have a SQL table like this: id...

Đường tới Sư Tượng – Thủ, Phá và Ly

June 18, 2015Nguyen Vu Hung Agile, None No Comment

Giới thiệu “Thủ ly phá” (Chữ Hán: 守破離) là một khái niệm trong võ đạo Nhật Bản, nó mô tả các giai đoạn trưởng thành từ khi học tới sáng tạo. Khái niệm này không chỉ áp dụng trong võ thuật mà còn được áp...

How to write good Test Cases ?

June 18, 2015Vu The Linh SQA No Comment

Every tester writes test cases however many times the test cases are rejected by reviewers because of bad quality, in order to write good test cases one should know what are the characteristics of a good test case. Mỗi trình viên kiểm thử khi viết...

Loop unswitching – a performance appraisal

June 4, 2015Vo Duc Phuong None, TechNote No Comment

Continue from the last blog post After reading Mr. Hưng last blog post about loop unswitching optimization technique and his question whether JVM or other languages interpreter uses this or not, I was Googling around and the answer is “Yes”, unfortunately not in a positive...