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From Mysql Tutorial
Tutorial on sql statement opti...
There are many tutorials on SQL optimization on the Internet, but they are quite messy. I recently s...
Solve the problem that mysql d...
This article mainly introduces to you the solution to the problem that the MySQL database cannot be ...
From Python Tutorial
Summarize the key points of Py...
The key points of Python strings are as follows: 1. Some quotation mark-delimited characters. You ca...
From Linux Operation and Maintenance
Introducing the usage of read ...
1. Basic reading The read command receives input from standard input (keyboard) or input from other ...
A very simple way to solve the...
Recently I discovered a problem. Under Linux, if there are too many files in a directory and the fil...
Simple implementation of sorti...
There is an interview question for school admissions, which requires sorting and deduplicating a lar...
Build FTP server under CentOS
vsftpd is a well-known FTP server under Linux. Of course, this is the first choice when building an ...
Log in to ftp under linux, det...
Use lftp1, login ftp code: lftp username: password @ftp address: transfer port (default 21) Usage (1...
Summary of usage of Linux comm...
Command introduction: This command is used to delete empty directories. If the directory is not empt...
Introduction to Linux command ...
1 Function The grep command in Linux system is a powerful text search tool. It can use regular expre...
