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Category: SQL

SQLPosted onFebruary 28, 2024

How to design an excellent URL?

Kyle Aster wrote in 2010 why careful URL design is important : URLs are universal, they work in Firefox, Chrome, Safari, Internet Explorer, cURL, wget, as well…

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SQLPosted onNovember 23, 2023

SAP ABAP DBSQL_SQL_ERROR error

wrong information: Database error text: SQL message: rejected as server is temporarily overloaded Return value of the database layer: “SQL dbsl rc: 99” In a…

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SQLPosted onNovember 3, 2023

Share a few tips on index creation

Regarding the index in MySQL, Brother Song has talked a lot with his friends before. However, there are still some details that need to be…

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SQLPosted onOctober 3, 2023

Index merging, if you can’t use it, don’t use it!

In the previous article, Brother Song and his friends shared the data structure of the InnoDB storage engine in MySQL. Friends know that when we…

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SQLPosted onSeptember 24, 2023

Let’s talk about the hot data issues of Redis

 Two days ago, the service of a certain cloud vendor we used was down, and it stayed down for most of the day. Our services…

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SQLPosted onSeptember 8, 2023

Redis memory optimization magic, small memory saves big data

This time, the code brother will share some optimization skills with you. When you encounter the following problems in your interview or work, you can…

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SQLPosted onJuly 22, 2023

What is a MySQL insert intent lock?

Insert Intention Lock, we also call it Insert Intention Lock in Chinese. This can be regarded as a supplement to the Gap Lock we talked…

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SQLPosted onJuly 6, 2023

Immutable data tool library immutability-helper

In the process of learning functional programming languages, there are three important features: Although JavaScript has the characteristics of a functional language, unfortunately, it still…

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SQLPosted onJune 16, 2023

Design and implementation of general ORM

introduce The basic models of our general ORM are all intended to be separated from the database. Almost all models are established at the programming…

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SQLPosted onApril 8, 2023

Prefix index, finding a balance between performance and space

In the specific practice of the project, we sometimes encounter some special fields, such as ID number. Brother Song used to have a friend who…

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