Python develops personal expression pack website

"Emoticon bag" is a way of using pictures to express feelings. Emoticon pack is a popular culture formed after social software is active. Emoticon pack is popular on the Internet, and almost everyone can make expressions. Have you ever been unable to find expression packs to deal with others. Today, Xiaobian shares how to develop a pe ...

Posted on Sun, 29 Dec 2019 09:15:01 -0500 by dpacmittal

Initial experience of golang database operation

In golang, a standard database interface database/sql package is provided. Those who have done database development should know that different databases have different database drivers. For example, mysql. We can go to https://golang.org/s/sqldrivers to find the driver we need. Here I take MySQL driver as an example and use go SQL driver. insta ...

Posted on Sun, 29 Dec 2019 07:08:58 -0500 by jrmckee

Adding, deleting, modifying and querying mysql by Python 3

Train of thought: 1. PyMySql in Python 2. Open MySQL and create database py_test 3. Create. py file, code: connect database, create cursor object, create table, add, delete, modify table, close cursor object, close database The code is as follows: import pymysql #Database connection db=pymysql.connect(host="localhost",por ...

Posted on Sat, 28 Dec 2019 15:58:29 -0500 by Bomas

Getting started with Dapper instead of your DbSQLhelper

Dapper introduction Dapper is a lightweight ORM framework under. Net. Under the small tool oriented project, using dapper will make the database operation layer code more elegant. Use of Dapper Using reference Dapper in a project is very simple. You can choose two ways: 1. Reference in NuGet 2.Github downloads the source code and adds it ...

Posted on Sat, 28 Dec 2019 15:28:31 -0500 by Hylian

April simulation test of JAVA advanced programming

** Rotate the map in MainActivity to the last page to enter the login page package com.bwie.newsmonth04; import android.content.Intent; import android.content.SharedPreferences; import android.support.annotation.NonNull; import android.support.v4.view.PagerAdapter; import android.support.v4.view.ViewPager; import android.suppo ...

Posted on Sat, 28 Dec 2019 15:24:58 -0500 by quetz67

Classic example of Python process

Multi thread and multi process application cases 1) Topic 1: calculate the sum of all prime numbers between 1 and 100000. The requirements are as follows: Write a function to determine whether a number is a prime number, Use the built-in function sum() to count all prime numbers and. Comparison 1: compare the speed of using m ...

Posted on Sat, 28 Dec 2019 12:45:36 -0500 by the_ut_tick

postgresql connects to SQL server using odbc_fdw

Install and configure ODBC? FDW 1. Install unixODBC apt-get install unixodbc unixodbc-dev 2. Install Microsoft ODBC Driver 17 for SQL Server curl https://packages.microsoft.com/config/ubuntu/16.04/prod.list > /etc/apt/sources.list.d/mssql-release.list apt-get update apt-get install msodbcsql17 mssql-tools If: W: GPG error: http://securit ...

Posted on Sat, 28 Dec 2019 12:05:33 -0500 by leoo24

Query database history

In the SQL Server database, most of the operations that have been done since the login and what has happened in the database can be traced, but some of them can't be traced. 1, Database start record 1. Last time SQL Server was started select sqlserver_start_time from sys.dm_os_sys_info; --You can also refer to the creation time of the s ...

Posted on Sat, 28 Dec 2019 11:35:16 -0500 by binto

python connects to SQL Server database, creates data table and adds corresponding Chinese annotation information to each field

Today, in response to the demand change of the product side, I need to add the annotation item in the original script of creating data table. I am not familiar with SQL Server database, but I have been exposed to this part of content for the sake of the project. I think it's very good to learn. The previous scripts for creating ...

Posted on Sat, 28 Dec 2019 11:31:12 -0500 by yoma31

Servlet3.0 multi image, file upload

1. analysis The process of uploading a file: the customer service selects a file, writes it to the server, and the server uses a directory to store the file - underlying IO stream operation   2. Form design on JSP file The form transfer format is multipart / form data, and the input tag name attribute of the file to be uploaded is best obtained ...

Posted on Sat, 28 Dec 2019 09:38:08 -0500 by atrocious