android sqlite encryption

SQLite, a lightweight database that adheres to the acid-based relational database management system, is designed to be embedded, and is now used in many embedded products, with very little resources and only hundreds of KB of memory. Support Windows/linux/unix and other mainstream operating systems, and can be combined with other programming languages, such as TCL, C #, PHP, Java, and ODBC interface, the same compared to MySQL, PostgreSQL, the two ope

Write this article is mainly online on SQLite operation too many and too miscellaneous, many times can not be very good use of their projects, the structure is not clear, I wrote a suitable for just contact people to see the operation method.The recent use of Android to save some data, a start with preferences, and later to save more things, found that with preferences obviously can not meet the requirement

SMS messages of Android are stored in the SQLite database in the Android system, but are not accessible to other programs (Security Mechanism of Android) Now we are reading SMS messages from our mobile phone, saving them in our own SQLite database, then reading the

SMS messages of Android are stored in the SQLite database in the Android system, but are not accessible to other programs (Security Mechanism of Android) Now we are reading SMS messages from our mobile phone, saving them in our own SQLite database, then reading the

, storing 8 bytes of floating-point numbersText: string literalBlob: Binary Object3. Operation of SQLite database using command modeNeed to configure the environment variables for Android, http://www.cnblogs.com/bluestorm/archive/2012/09/27/2706420.html(1) Open cmd, go to F-disk, execute Sqlite3 mydb.db, create a mydb.db file(2) Create a t_student table and insert a piece of dataIn

About SQLiteGoogle for Andriod's larger data processing provides SQLite, he is in the storage, management, maintenance and other aspects of the excellent, the function is very strong. SQLite has the following features:1. LightweightWith SQLite you only need to bring a dynamic library, you can enjoy its full functionality, and the size of the dynamic library want

This article originates from: http://blog.csdn.net/dt235201314/article/details/73176149SOURCE download welcome Star (updating): Https://github.com/JinBoy23520/CoderToDeveloperByTCLerI. StatementThis week's learning content is Android storage, requirements: Database SQLite related operations, commonly used file access methods, as well as practical learning, the main learning

Storage data (Medium)--sqlite syntax Introduction这篇文章学到的内容：1、sqlite数据存储The database used by Android is SQLite, which is presented here as an example of sqlite3.1 Sqlite3 supported data typesNULL INTEGER REAL TEXT 2 but in fact, Sqlite3 also accepts the following data types:smallint 16 位元的整数。 interger 32 位元的整数。 d

During the process of generating SQLite database files on the SD card in Android today, we found that A. DB-Journal file with the same name as the database file with a size of 0 is generated. I do not understand the purpose of this file, so Google's SQLite official documentation found that the file is used as follows: This file is a temporary log file of

Android pit-Free Guide (I) Sugar and SQLite, androidsqlite I recently used the ORM framework Sugar1.4 in Android mobile development, which saves a lot of code and also encountered a lot of trouble. The record is as follows:1. Use group by to convert query results to POJO objects In Sugar1.4, you can use the following code to convert the query result to a POJO obj

Problem Description:the 99999.99 is credited to the SQLite database, and the type is decimal (6,3). change to 100000.00 by Cursor.getstring ()and storage of billions of bits of data: cursor.getstring () will be abnormal, or directly converted to scientific notationSolution:1. Read for SQLite data type (even if SQLite is untyped), the decimal type is cursor.getdou

To manipulate the SQLite database on the Android real computer directly from the command line, you can do it directly through the ADB shell, but only if you have to get root privileges.In addition, the Android system is actually the Linux shell, this should be known, but under normal circumstances, in the/system/xbin/directory,There is no sqlite3 command, you nee

cursorfactory specifies that the factory class that obtains a cursor instance when executing the query is set to NULL, representing the factory class super (context, name, NULL, version) using the system default; @Override public void OnCreate (Sqlitedatabase db) { db.execsql (' CREATE TABLE IF not ' EXISTS person (personid inte GER primary key AutoIncrement, name varchar, age INTEGER); @Override public void Onupgrade (sqlitedatabase db, int oldvers

1.Sqlite IntroductionSQLite is a lightweight database, it is contained in a relatively small C library, it is designed to be embedded, because it occupies very little resources, it may only need hundreds of K of memory, and support Windows/linux/unix and so on the mainstream operating system, At the same time can be combined with a lot of programming languages, such as: c#/java/php, etc., so in the embedded device is particularly popular, which is pre

BoAndroidsqlite Database Initialization at startupMethod 1 has described a way to initialize a databaseIts database initialization is not a SQL statement, but a ready-made SQLite binary file for direct copy to the Android system's database path. On the one hand, I'm not so sure. Direct copy of this binary file, on the other hand, if the binary structure of the SQLite