今天介绍InnoDB七种锁的第一种：自增锁(Auto-inc Locks)。 (1)事务A先执行insert，会得到一条(4, xxx)的记录，由于是自增列，故不用显示指定id为4，InnoDB会自动增长，注意此时事务并未提交； (2)事务B后执行insert，假设不会被阻塞，那会得到一条(5, ooo)的记录； 画外音 ...

初次接触select...into...from和insert into...select语句时，许多人容易混淆。表面上看，两者都是将查询结果插入到表中，但实际机制 ...

Bacteria insert proteins into their outer membrane using a highly conserved apparatus known as the β-barrel assembly machinery (BAM). A large group of bacteria with particularly complex outer-membrane ...

Want to fit an image in a Table cell in Word? Follow the steps below to insert images into a table in Microsoft Word: Now insert pictures into each table cell. You will notice that the pictures are ...

We can all agree that an extra layer of protection is always a welcome option when securing our devices. However, modern methods that require you to insert a physical security key into the USB port ...

MySQL is one of the world’s most widely used database management systems. It is easy to install and use and is usually free. Here’s how to use it. In our previous post, we took you through the basic ...

We may receive a commission on purchases made from links. In today's digital shopping age where it's all too easy to order something with the click of a button, cardboard boxes can pile up incredibly ...

('user1', 'pass1', 'Alice', 'Johnson', '[email protected]', '1234567890', '1990-01-01', '123 Main St', 'Female', 'English, Spanish', 5, 'Vegetarian', 'Tidy ...

Website owners have to opt out of Google’s ‘Page Annotation’ feature that was recently added to its iOS app. Website owners have to opt out of Google’s ‘Page Annotation’ feature that was recently ...

Abstract: Inserting an object into a background scene has wide applications in image editing and mixed reality. However, existing methods still struggle to seamlessly adapt the object to the ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Once you’ve installed SQLite, you’ll probably want to learn how to maneuver around the ...