Posted inAlgo
The Principle of Quick Sort
Quick sort adopts the divide and conquer strategy. Its basic idea is: Choose a Pivot:…
Posted inDB
Scenarios Where SQL Indexes Fail
1. Using functions or expressions on indexed columns When performing function operations, mathematical expressions,…
Posted inOS
What is a Memory Barrier?
When asked about memory barriers in an interview, you can answer systematically from three aspects:…
Posted inAlgo
What’s the Difference Between Arrays and Linked Lists?
Arrays and linked lists are two common basic data structures, and they have some important…
Posted inOS
Methods of Inter-Process Communication
1. Pipes Features: Half-duplex, used only for related processes (e.g., parent-child), exists in memory, operable…
Posted inOS
What’s the Difference Between Threads and Processes?
Processes and threads are two fundamental concepts in operating systems for managing program execution. Their…