Oracle Learning Notes 4: pl/sql

1. What is pl/sql? sql: Structured Query Language pl/sql: (Procedure Language & Structured Query Language) is an extension of SQL language and stored procedure language. It can implement simple logic programming like Java language. 2. Advantages of pl/sql? From bloggers https://www.cnblogs.com/huyong/archive/2011/05/16/2047329.html See ...

Posted on Sun, 21 Jul 2019 20:41:56 -0700 by EGNJohn

Ubuntu 18.04, cuda10 Anaconda compile and install caffe

After several days, it was finally installed. It's all pits that I've trampled on. Maybe I am not proficient in using linux, and I don't know how to solve the problems in the configuration process. So I want to keep a comprehensive record. I. Knowledge Points - Adding Environmental Variables The M ...

Posted on Sun, 21 Jul 2019 01:49:31 -0700 by suzzane2020

Day61 (Routing System, Function View, Django ORM Preliminary)

1.1 Pseudo-static Pseudo-static is relative to static files, such as https://www.cnblogs.com/hesujian/p/11165818.html We call it pseudo-static, because it's not actually html static pages, it's just masquerading as html static pages. The benefits of pseudo-static: 1. Beautiful (the traditional question mark splicing looks messy) 2. Seo (Se ...

Posted on Sun, 21 Jul 2019 00:48:36 -0700 by dahwan

Operating MySql in python

Operating MySql in Python Articles Catalogue Operating MySql in Python Create database tables ** Database insertion operation** ** Database query operation** ** Database Update Operation** ** Database deletion operation** Create database tables In Python programs, execute() can be used to cr ...

Posted on Sat, 20 Jul 2019 23:27:09 -0700 by surfinglight

Introduction to GraphX and GraphFrames Testing

      Overview GraphX is a component of Spark for graph and graph computing. GraphX introduces a new graph abstract data structure by extending Spark RDD, a directed multiple graph that puts valid information into vertices and edges. Like every module of Spark, they have an abstract data struct ...

Posted on Sat, 20 Jul 2019 20:33:38 -0700 by e11rof

Introduction to Python Crawler [4]: Unlogged Picture Crawling on American Airlines

Unlogged Pictures on American Airlines Network--Brief Introduction The last article has been written for a long time. Next, I will continue to finish the crawler of American Airlines. The crawler in this set of tutorials may not add much valuable technical points to your actual work, because it is onl ...

Posted on Sat, 20 Jul 2019 07:16:26 -0700 by yum-jelly

Python crawler novice tutorial: mobile APP data capture pyspider

1. Mobile APP Data - Write in front Continue to practice the use of pyspider, recently searched some of the framework's usage skills, found that the document is difficult to understand, but there is no obstacle to use it for the time being, it is estimated that to write about five tutorials on the fra ...

Posted on Sat, 20 Jul 2019 05:29:18 -0700 by dwnz

Python crawler novice tutorial: Climb 6574 articles to tell you what the product manager is looking at!

As two antagonistic species in the Internet, product Wang and program ape seem to be natural rivals; but the two sides that work closely together in the product development chain can better promote the development of the project. So what articles do product managers read on weekdays? How can we program ...

Posted on Sat, 20 Jul 2019 05:21:58 -0700 by khr2003

Python Object-Oriented Programming OOP Writing Class Artifact: Dataclass

Dataclasses Hello, everyone. Last issue was inspired by my friends. In this issue, I mainly record the learning process of my Dataclasses. A brief review of attrs usage was given before. In this issue, we will look at a more concise self-written artifact: dataclasses. It is important to note that the version is larger than or equal to Python 3. ...

Posted on Sat, 20 Jul 2019 03:12:47 -0700 by cypher235

Loading the Report of Listed Companies on the Stock Exchange in Batch

Listed Companies Report Search Page on the Shanghai Stock Exchange http://www.sse.com.cn/disclosure/listedinfo/announcement/ By looking at the interface invoked on the page, you can see that: Get all the stock codes on the Shanghai Stock Exchange http://www.sse.com.cn/js/common/ssesuggestdata.js Get ...

Posted on Fri, 19 Jul 2019 20:36:56 -0700 by samrat_php