CSDN Weekly Competition 62
Competition experience
There is no fill-in-the-blank question this time, praise.
There are four multiple-choice questions. Basically, people who are familiar with databases should be able to answer all of them correctly.
There are two programming questions, um. . . . It is the second of the four topics that were sneakily updated last week. I thought that these questions would not come up, but Lao Gu wrote Lao Gu's answer in the community early last week.
Then, because the submission speed was relatively fast, I thought it would be judged as cheating, but it turned out to be on the list, which was quite surprising.
For friends who don’t want to subscribe to this column, you can go to the homepage of Lao Gu’s blog, scroll down, and find Lao Gu’s personal community, which also has corresponding content. Writing this article is purely for the sake of brushing up the number of articles and getting real rewards as a last resort.