I am a CTO with over 5 years of experience in start-up and over 10 years in working at managing position for big companies. I am also a full-stacks developer with over 12 years in system design, product development and technology product deployment. User experience and system security are the things I care about most.
The Linux LS Command – How to List Files in a Directory + Option Flags
Since the creation of Unix in the 1970s, a lot of operating systems have used it as their foundation. Many of these operating systems failed, while others succeeded. Linux is one of the most popular Unix based operating systems. It’s open source, and is used all over the world
The 3 Types of Design Patterns All Developers Should Know (with code examples of each)
What is a Design Pattern? Design patterns are design level solutions for recurring problems that we software engineers come across often. It’s not code – I repeat, ❌CODE. It is like a description on how to tackle these problems and design a solution. Using these patterns is considered good
Oracle database Commands
SSH vào server bằng tài khoản oracle.
Truy cập công cụ sqlplus, đăng nhập quyền sysdba:
sqlplus / as sysdba
Thông thường, có thể lệnh sqlplus có thể sẽ không tồn tại trong session hiện tại, bạn cần thực hiện câu lệnh sau để áp dụng biến môi trường (xem trong bài Install Oracle 11g R2 on CentOS):