Course Intermediate 11360
Course Introduction:"Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.
Course Advanced 17663
Course Introduction:"Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.
Course Advanced 11379
Course Introduction:"Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.
2017-05-17 10:01:02 0 1 743
mysql - Why does the database need a lock mechanism?
Why does the database need a lock mechanism? Can you give a detailed example using code? Thank you!
2017-05-18 10:54:59 0 3 748
Unable to log in to personal center on mobile phone
2021-07-16 22:00:43 0 2 1793
virtualbox - Redis使能密码后Ubuntu虚拟机无法正常关机
2017-04-25 09:02:50 0 3 1038
MutationObserver not working properly on localhost
2023-08-31 21:38:41 0 1 602
Course Introduction:The difference between Xiaomi's unlocked and unlocked phones: 1. The locked version can only be used by inserting the SIM card of the corresponding operator, while the unlocked version can choose a SIM card from any operator without any restrictions; 2. The phone is locked The locked version cannot be upgraded in time with the latest official system, but the unlocked version can be activated smoothly and used normally; 3. The locked version cannot be flashed by oneself, while the unlocked version can be flashed by oneself.
2022-11-14 comment 0 17181
Course Introduction:What are the differences between locked and unlocked iPhones? 1. Differences in system upgrades. A locked iPhone cannot be upgraded to the official new system at will. The upgrade needs to be unlocked. This problem does not exist with unlocked iPhones. Consumers can upgrade at any time as needed. 2. The difference between locked and unlocked Apple mobile phones: Price: The unlocked version of Apple mobile phones is the official unlocked version. The price of this kind of mobile phone is generally higher. Locked Apple mobile phones are bound to an operator and have a fixed monthly consumption. 3. The differences between locked and unlocked Macs include: different operator card usage rights, different prices, and different operator contracts. Operator card usage rights vary. Unlocked iPhones can use cards from any operator. Locked iPhones cannot update the system firmware at will. The difference between locked and unlocked Apple phones. Apple phones
2024-03-13 comment 0 842
Course Introduction:Apple mobile phones are the most widely chosen mobile phones recently, but we often see people discussing the difference between locked and unlocked Apple mobile phones online, and they are entangled in which one to buy. Today, Chen Siqi will share with you the differences between locked and unlocked iPhones and help you solve problems. In fact, there is not much difference between the two in appearance and function. The key lies in the price and use. What is a locked version and an unlocked version? An iPhone without locking restrictions means that it is not restricted by the operator, and the SIM card of any operator can be used normally. A locked version means that it has a network lock and can only use SIM cards provided by the designated operator and cannot use others. In fact, unlocked Apple phones can use mobile,
2024-03-28 comment 0 466
Course Introduction:How to implement lock-free and optimistic locking operations on data in MySQL? Overview: In high-concurrency database applications, locks are a common performance bottleneck. MySQL provides a variety of lock mechanisms to ensure data consistency and concurrency control, but too many lock operations will lead to performance degradation. In order to solve this problem, MySQL introduced lock-free and optimistic locking mechanisms to improve the concurrency performance of the database. This article will introduce how to use lock-free and optimistic locking to operate data in MySQL. 1. Example of lock-free operation: Lock-free operation refers to a
2023-08-03 comment 0 1543
Course Introduction:"Honor of Kings" has now enabled the endless mode of the Hundred Refining Machinery. Since many friends don't know how to unlock it, let's take a look at the detailed method of unlocking the endless mode of the Hundred Refining Machinery with the editor. I hope it can help you. Players can refer to it. How to unlock the endless mode of the Hundred Refining Machines of King of Glory 1. Currently, this mode has not been enabled. Players will not be able to participate in the endless mode of the Hundred Refining Machines until March 19th. 2. Pass the 16th wave in endless mode to receive 50 Hundred Refining Tianshu. Details of the Mechanism Bailian activity 1. Opening hours: March 14th 10:00-March 27 23:592. Open the game, enter the main interface and click the "Competitive Confrontation" button to enter the game mode selection interface and select Mechanism Bailian Endless levels are enough. 3. Or enter through activities
2024-03-16 comment 0 1358