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Mysql query questions, not only has a high exit rating, but also has a great impact on salary negotiation, so it plays an important role. 1. Almost all software test questions will have Mysql query exercises. Large companies with high salaries will select more excellent testers because of the number ...

MySQL must know must know Regular expressions are special strings (character sets) used to match text. Three tables used: customers, products, and vendors Basic character matching: the keyword REGEXP is followed by a regular expression #Retrieve all rows of column prod'u name containing text '1000' ...

1, There are four levels of isolation for MySQL InnoDB transactions, and the default is REPEATABLE READ. READ UNCOMMITTED. Another transaction modifies the data but has not yet committed, and the SELECT in this transaction will read the uncommitted data (dirty read). READ COMMITTED. This transaction ...

1, Introduction to year    year is the MYSQL SQL statement audit platform. Provide query audit, SQL audit and other functions. The edition of year 1. X needs the function of SQL audit and rollback provided by inception. Since year 2.0 does not need to rely on perception, it has implemented SQL audit / rollback function   th ...

1. Connect mysql Connect this machine mysql -u root -p Connecting to a remote host mysql -h 192.168.1.128 -u root -p Sign out exit; 2. Change password Format: alter user user name @ host address identified by 'new password'; Change the root password to newroot alter user root@local identified by 'newroot'; View user host add ...

LNMP architecture introduction and construction (source code compilation Nginx, MYSQL, PHP) 1. What is LNMP 2. Working principle of LNMP 3. Source compilation of MySQL database 4. PHP source compilation 5. Source compilation of nginx 1. What is LNMP LNMP is a set of free software acronyms common ...

There are too many photos at home. I found a lot of software, which can't achieve the desired effect of viewing pictures. Now I share a PHP family album program built on raspberry pie, which can be viewed by folders, calendars, keywords, and full screen slide show. I believe that many students are the s ...

This post is a reference Lepus Official Documentation The official documentation was detailed, but some download links failed (maintainers of this open source product are busy, so updates are not timely) and the use of lepus was documented for their own writing style, so this post appeared. The Lepus system features are as follows: Remote mo ...

Note: Both commit() and execute() of database pymysql submit data synchronously to the database when submitting data. Because of the resolution of scrapy framework data and the asynchronous multi-threaded, scrapy's data resolution speed is much higher than the speed at which data is written to the database.If the data is writte ...

Note: part of the code of the article case will be misaligned. Please pay attention to the format alignment when using!! Chapter 3 yaml syntax and playbook writing Ansible's playbook adopts yaml syntax, so before learning ansible playbook, it is necessary to understand and master the grammar format of yaml. Only by practicing and mastering the ...