Tag：Beijing
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Time：2021-9-24
catalog 1、 Title 2、 Data processing 3、 Problem solving 1、 Title Topic information: “order information table” records the information of Brazilian passengers using taxi software, including order call, response, cancellation and completion time. （Didi 2020 data analysis interview questions） Field information： order_ ID: order ID, calling order ID passenger_ ID: Passenger ID, passenger identification number […]
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Time：2021-8-23
On the national day, I went to Beijing with my wife for a few days. I went to the city I once yearned for, but I didn’t go to it in the end. Four years ago, when I was just 18 years old, I had a whim on the day when the final exam ended […]
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Time：2021-7-22
SQL language everywhere。 SQL is not only the exclusive skill of technical personnel, it seems that everyone can write SQL, just as everyone is a product manager. If you do background development, crud is a routine. If you do data warehouse development, writing SQL may occupy most of your working time. When we understand the […]
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Time：2021-6-3
My name is Guo Ziyang. I was born in a small town in the south of Anhui Province in 1993. My father is a workshop worker in a subordinate unit of a state-owned enterprise. My mother works odd jobs everywhere to subsidize the family. I also have a sister who is three years older than […]
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Time：2021-5-10
This paper mainly introduces the go language array and its basic use. Array (array) An array is a collection of elements of the same data type. In go language, an array is determined from the time it is declared, and its members can be modified when it is used, but the size of the array […]
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Time：2021-3-29
Warning: non rigorous gas phase data analysis aims to express the process of data analysis. It’s better to have a look at the conclusion. For more rigorous information, please refer to the professional gas phase data. In October, it seems that the scorching summer in Beijing has suddenly stopped, and then it has become a […]
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Time：2021-3-15
preface This article is included in the album:http://dwz.win/HjK, click to unlock more knowledge of data structure and algorithm. Hello, I’m brother Tong, a hard core man who climbs 26 floors every day and doesn’t forget to read the source code. I believe everyone has the experience of grabbing and swiping tickets. At the end of […]
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Time：2021-3-2
What kind of data do you want to get? If you have a complete data set, it must be excellent, but generally it is difficult to obtain it easily through a fair way. In terms of the real-time recruitment information to be studied in this series of articles, it is enough to obtain the relevant […]
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Time：2020-11-3
Author: geek Xiaojun, a post-80s generation focusing on Web Technology I don’t have to spell smart people, I just need to spell those lazy people, I will certainly surpass most people!CSDN @ geek Xiaojun, original article, B station technology sharingVideo of station B:Bilibili.com ?Personal blog:cnblogs.com ? Perl compatible regular expression processing function in PHP Before […]
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Time：2020-10-10
1、 Preface If the company has branches in Beijing and Shanghai, each branch has its own domain (or domain tree). They form a domain forest together and visit each other through the Internet (such as VPN). When a user in Shanghai logs in to the domain, it is possible to find the domain server in […]
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Time：2020-9-29
In order to accelerate the innovation and development of blockchain technology and industry, Beijing Municipal Administration of government services, Beijing Science and Technology Commission, and Beijing Economic and Information Bureau organized relevant units to promote the application and construction of blockchain in the field of government affairs services, and achieved phased results. On this basis, […]
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Time：2020-9-13
DROP TABLE IF EXISTS `dudept`; CREATE TABLE `dudept` ( `Id` int(11) NOT NULL AUTO_INCREMENT comment ‘ID’, `deptCode` varchar(10) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL comment”, `deptName` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL comment”, `pCode` varchar(10) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL comment”, `ParentId`int(11) not null comment ‘Parent ID’, PRIMARY […]
