Redis full check verifies the data of two different redis instances

Redis full check checks whether redis data is consistent: Verify the data of two different redis instances: 6986 is redis instance 16987 is redis instance 2 Log in to 6986 redis instance 1, simulate setting 4 key values [root@localhost redis-full-check-1.4.7]# redis-cli -h 127.0.0.1 -p 6986 -a 'Y2hJKSGtuEq' Warning: Using a password with '-a' ...

Posted on Sat, 08 Feb 2020 00:50:26 -0800 by jassh

How to customize an elegant content provider

How to customize an elegant content provider Recently, during code review, we found that many people's provider definitions are not very good, and the writing is so rough that the code is not robust enough, and the readability is not strong But since you have written the content provider, you need to ca ...

Posted on Sun, 12 Jan 2020 07:34:50 -0800 by SulleyMonstersInc

Guide to sqlite3 under cmd

1. Enter the directory where the database. DB file is located, such as D:\microblog\app.db C:\Users\Administrator>d: D:\>cd D:\microblog D:\microblog> 2. Enter sqlite3 app.db D:\microblog>sqlite3 app.db SQLite version 3.16.2 2017-01-06 16:32:41 Enter ".help" for usage hints. sqlite> 3. View tables in the da ...

Posted on Sat, 04 Jan 2020 21:43:54 -0800 by simonj

Android uses adb shell and android studio plug-in Database Navigator to view sqlite database

In Android development, sometimes we need to view database files. Here are two ways to view them for your reference. Here we take the multimedia database in android as an example. The storage path of the multimedia database in Android is as follows: /data/user/0/com.android.providers.media/databases First: use adb shell to vi ...

Posted on Sat, 04 Jan 2020 19:01:59 -0800 by Smicks

How to transfer objects from one activity to another on Android

I am trying to send objects of my customer class from one Activity and display them in another Activity. Code of customer class: public class Customer { private String firstName, lastName, Address; int Age; public Customer(String fname, String lname, int age, String address) { firstName = fname; lastName = l ...

Posted on Sun, 22 Dec 2019 01:57:05 -0800 by benz862

Share Xamarin.android's beginner experience with SQLiteOpenHelper

Regarding the use of SQLiteOpenHelper, for Xiaobai's me, Baidu has introduced quite a lot of big gods, which failed to let me, a novice (zero Foundation), successfully learn,Refer to http://www.cnblogs.com/yaozhenfa/p/xamarin'android'sqliteopenhelper.html,I successfully experimented with my first login registration programIn order to make a sma ...

Posted on Fri, 06 Dec 2019 17:36:55 -0800 by WRa

[subversion] svn server deployment and account secret permission configuration

Special topics: Linux application service configuration Installation and configuration of various Linux Software For more information, please click My blog Check, welcome to visit. Subversion(SVN) is a centralized project version management tool. You can record every modification of files and directo ...

Posted on Sat, 26 Oct 2019 11:58:27 -0700 by caramba

Database query performance LinqDB vs Sql query

Using LinqDB to query Sqlite database data, whether it is big data or a small amount of data, feels particularly time-consuming, especially the first query A data table with 27000 pieces of data First query: Query 27000 pieces of data, taking 1s It also takes 750ms to query 8 pieces of data Secondary query: It takes 475ms to query 2700 ...

Posted on Fri, 25 Oct 2019 05:46:05 -0700 by Digitry Designs

Synchronized saving of FreeSql navigation properties

Write before FreeSql supports.net framework 4.5+,.net core 2.1+, open source ORM under a.net platform.With over 3100+, unit testing is attracting new developers and continuing to evolve. Like EFCore, we have navigation objects that support OneToOne (one-to-one), [ManyToOne], [OneToMany], [ParentChild], [ManyToMany], either by convention or by h ...

Posted on Sun, 29 Sep 2019 19:03:26 -0700 by cedricm

Thread Safety in CoreData and SQLLite Multithread Access

Links to the original text: http://www.cnblogs.com/devinzhang/p/4699196.html Thread Safety in CoreData and SQLLite Multithread Access Database read operations are generally multi-threaded access. When reading data, we must ensure that i ...

Posted on Fri, 19 Jul 2019 20:56:47 -0700 by Jaquio