Tag：field
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Time：2021-7-30
In the past two years, one of the most concerned models in the field of natural processing is Bert. Major companies and universities have successively released their own pre training language models; In 2020, openai released gpt-3, which is a natural language deep learning model with 175 billion parameters. Its emergence is better than known_“ […]
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Time：2021-7-29
This article is continuously updated to record the MySQL installation pit encountered 1. Uninstall MySQL sudo rm /var/lib/mysql/ -R sudo rm /etc/mysql/ -R sudo apt-get autoremove mysql* –purge sudo apt-get remove apparmor 2. Installation 2.1. Method 1 sudo apt update //Install mysql5.7 sudo apt install mysql-server -y 2.2. Method 2 dev.mysql.com/downloads/repo/apt/Copy download link //Download curl […]
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Time：2021-7-29
Reading time |1.14 minutes word count |1825.6 characters primary coverage |1. Introduction & background “MSSQL · take a record according to the maximum value of multiple fields and grouping according to a field” Author | SCscHero Writing time | 2021/7/12 PM12:0 Article type |Series Degree of completion |Completed motto Every great cause has a trivial […]
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Time：2021-7-29
Structured log, as the name suggests, is no longer a free-form log, but follows a certain structure: each line of log is a JSON structure. The benefits are obvious: simplify log parsing and make the subsequent processing, analysis or query of logs convenient and efficient. In contrast to the structured log, the traditional log is […]
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Time：2021-7-28
background Wednesday, 18:00. Xiao Ming twisted his slightly sour neck, rubbed his eyes and stared at the screen. Finally, the work was finished, and the whole people became relaxed near work. “The docking party needs us to provide new services. It will go online next Tuesday. I’ll send you the demand. It’s very simple.” A […]
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Time：2021-7-28
First official account: Python Data Science Author: Dongge take off callAPIAnd document databases return nestedJSONObject when we usePythonWhen trying to convert a key in a nested structure to a column, the data is loaded intopandasThe following results are often obtained: df = pd.DataFrame.from_records（results [“ issues”]，columns = [“ key”，“ fields”]） Note: here, results is a large […]
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Time：2021-7-28
What is explain Using the optimizer can simulate the optimizer to execute SQL query statements, so as to know how MySQL handles your SQL statements, and analyze the performance bottlenecks of your query statements and table structures. What can explain do Sequential reading of tables Which indexes can be used Operation type of data read […]
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Time：2021-7-27
A boring task It all started years ago. At that time, I just joined a new company, and the project manager assigned me a relatively simple job to sort out a metadata table for all database fields. Because many of the project documents are incomplete, it is necessary to organize a basic dictionary. If it […]
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Time：2021-7-27
abstract: the core of million level and ten million level data processing lies in the design of data storage scheme. Whether the design of storage scheme is reasonable directly affects the operation of data crud. The overall design can consider the following aspects: data storage structure design; Index design; Data primary key design; Query scheme […]
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Time：2021-7-27
When you are young, you don’t know the pain of optimization. When you meet a pit, you know the difficulty of optimization—— Uncle Wang at the entrance of the village The content map of this paper is as follows: I have talked about performance optimization in many previous articles, such as the following: The performance […]
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Time：2021-7-26
Author lakhay AroraCompile FlinSource | analyticsvidhya introduce With the popularity of the Internet, we are now generating data at an unprecedented speed. Because performing any type of analysis requires us to collect / query the necessary data from the database, it is very important to select the right tool to query the data. Therefore, we […]
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Time：2021-7-26
0 grep common parameters reference resources:GNU Grep 3.0 –Color: highlight the matching string -v: Display that cannot be matched by pattern -i: Ignore character case -o: Show only matching strings -q: Silent mode, no information output -A #: after, the last # line matched -B #: before, the first # line matched -C #: context, […]
