In the process of program development, when it is necessary to filter data dynamically at the back end, logical operations and and or are used to match multiple conditions. In the initial design version, only simple and or single layer structures were used. Implement A and

Foreword The time of one year passed quickly. Today last year, I wrote Farewell to 2022. Today, I also want to make a summary of 2023. The same year as

Today, I found a previous section of SQL, which was very slow to query. So I decided to optimize it, and the final adjustment effect was significant (4.6s-0.25s). Now let's take a look. Original sql, 599 pieces of data in total, query time

The server expired. After purchasing a new ECS, I suddenly found an embarrassing problem. I migrated the ZFAKA card issuing network that was previously deployed, and found that it could not be opened

It's time to buy servers again. At the time point of the Double 11 Festival, choose the most affordable and cost-effective ECS, and skip the lightweight and traffic oriented ECS

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The content that is often read and written to the stored data is generally stored in Redis. At first, for convenience, the data needed by a business was serialized and stored directly

For the subsequent updates of the 2023-12-11 update, see the 2023-11-08 update of the Latest Document Address. 1. The toolbox WEB terminal releases version 3.2.0, adding new version reminders, announcement displays, and online update functions. 2、...

1、 Preface It has been 3 months since AutoJsPro stopped changing, castration and forced update. Is such a good thing gone? In order to continue