android simulator ADT links to local database Mysql
1. Create a new link database thread and insert data into the database to view the link effectNote that if you only test the link ip between the simulator and the local database MySQl, you can directly fill in 10.0.2.2ip can be directly filled in 10.0.2.2ip can be directly f ...
Posted on Mon, 18 Nov 2019 12:45:48 -0500 by davitz38
Manual compilation and installation of MYSQL
1. Get the installation package from the host with samba service
[root@localhost ~]# mount.cifs //192.168.10.28/share /mnt
Password for root@//192.168.10.28/share:
[root@localhost ~]# cd /mnt/LNMP/
[root@localhost LNMP]# ls
Discuz_X3.4_SC_UTF8.zip mysql-boost-5.7.20.tar.gz nginx-1.12.2.tar.gz p ...
Posted on Mon, 18 Nov 2019 11:33:55 -0500 by eirikol
After sorting out the functions, we can start the database table design:
Database table diagram:
First, open Navicat Premium to create a database blog
The configuration is as follows:
First, create mysql.js to configure MySQL connection (based on Sequelize)
var config = require('config-lite');//Introducing flexible pro ...
Posted on Mon, 18 Nov 2019 09:27:06 -0500 by clio-stylers
Since the development of FreeSql project on November 28, 2018, the version has been released to v0.3.12. Version rule: number of years month day version number of the day. At present, it mainly includes the maintenance and development of FreeSql and FreeSql.Repository. This article introduces some intimate functions.
Error: the incoming reques ...
Posted on Mon, 18 Nov 2019 04:54:46 -0500 by songwind
New year is coming, the technical content of the home page is really less and less. I understand that you are looking forward to a holiday for the new year, my friend, I would like to pay you a visit to the early years.
Brother, I got nervous from the end of November and started the development tour of ORM functional library. It took two mont ...
Posted on Mon, 18 Nov 2019 03:58:16 -0500 by mash
With MyBatis, all Dao layer methods inherit the base class basemapper < T >
I. use < script > < script > script package
The first way: use < script > < script > to wrap, and implement dynamic SQL like writing SQL statements in xml
1. Use the < if > < if > tag to realize fuzzy keyword sear ...
Posted on Mon, 18 Nov 2019 02:53:56 -0500 by horseygirl
The main purpose of this article is to record how to integrate JDBC and MyBatis in the spring boot project. I will use simple usage and test cases in the integration. After all, the purpose of this article is to integrate, rather than teach you how to use them. I hope you can forgive me a lot.
The entity classes a ...
Posted on Sun, 17 Nov 2019 23:52:56 -0500 by 9three
Database Mysql overview, database operation, data table operation, data type, management database
order by asc; ascending
desc descending order
sql standard language:
Data query language select
Data definition language create/alter/drop
Data operation language insert delete update
grant revoke, a data control language, gives user ...
Posted on Sun, 17 Nov 2019 14:23:35 -0500 by ctcp
1. LIMIT statement
Paging query is one of the most commonly used scenarios, but it is also the most prone to problems. For example, for the following simple statements, the general way DBA s think of is to add a composite index to the fields of type, name, create "time. In this way, conditional sorting can effectively utilize index and i ...
Posted on Sun, 17 Nov 2019 14:14:06 -0500 by cornelombaard
First time included
Specific steps of offline data calculation
For the first time, there will be an original data. First, do the following:
Create a directory of / people on hdfs and copy the csv file to it
-- stay hdfs Create on people_in
bin/hadoop dfs -mkdir /people
bin/hdfs dfs -mkdir -p /people
-- Local people01.cs ...
Posted on Sun, 17 Nov 2019 11:30:57 -0500 by sirmanson