SQLite
SQLite 官网
SQLite is an in-process library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine.
SQLite是一个内进程库，独立、无需服务器、零配置、事务型SQL数据库引擎。
The code for SQLite is in the public domain and is thus free for use for any purpose, commercial or private.
SQLite的源码是公开的，任何目的的应用均免费，无论是商用还是私用。
SQLite is the most widely deployed database in the world with more applications than we can count, including several high-profile projects.
SQLite 是世界上最广泛部署的数据库，拥有难以计数的应用，包括一些高知名度工程。
SQLite is an embedded SQL database engine.
SQLite 是一个嵌入式SQL数据库引擎。
Unlike most other SQL databases, SQLite does not have a separate server process.
不像大多数其他的SQL数据库，他没有分离的服务进程。
SQLite reads and writes directly to ordinary disk files.
SQLite直接读写普通的磁盘文件。
A complete SQL database with multiple tables, indices, triggers, and views, is contained in a single disk file.
一个完整的SQL数据库包含多个表、索引、触发器、视图，都包含在一个磁盘文件中。
The database file format is cross-platform - you can freely copy a database between 32-bit and 64-bit systems or between big-endian and little-endian architectures.
数据库文件格式是跨平台的，你可以自由的复制数据库，无论是32位和64位之间，还是大字节序和小字节序结构之间。
These features make SQLite a popular choice as an Application File Format.
作为应用文件格式，这些特征使SQLite成为受欢迎的选择。
Think of SQLite not as a replacement for Oracle but as a replacement for fopen()
SQLite不是Oracle数据库的替代，而是fopen（）的替代。
SQLite is a compact library.
SQLite是一个紧凑的库。
With all features enabled, the library size can be less than 500KiB, depending on the target platform and compiler optimization settings.
所有功能保持有效的情况下，库的大小可以小于500KiB，具体大小与目标平台和编译优化设置有关。
(64-bit code is larger. And some compiler optimizations such as aggressive function inlining and loop unrolling can cause the object code to be much larger.)
（64位代码会大一些。有些编译优化，例如进取型函数嵌入和循环展示，可能会使得目标代码变得更大）
If optional features are omitted, the size of the SQLite library can be reduced below 300KiB.
如果省略掉可选功能，库的大小可以缩减到300KiB以下。
SQLite can also be made to run in minimal stack space (4KiB) and very little heap (100KiB), making SQLite a popular database engine choice on memory constrained gadgets such as cellphones, PDAs, and MP3 players.
SQLite也可以在小栈空间（4KiB）和极小堆（100KiB）上运行，这使得SQLite成为在很多内存空间有限的设备上的广泛选择，例如：手机、PDA、MP3播放器。
There is a tradeoff between memory usage and speed.
需要在内存使用和速度之间衡。
SQLite generally runs faster the more memory you give it.
SQLite通常是给的内存越多运行越快。
Nevertheless, performance is usually quite good even in low-memory environments.
虽然如此，在低内存环境下，性能也是相当好。
SQLite is very carefully tested prior to every release and has a reputation for being very reliable.
SQLite在每次发布前都会仔细测试，拥有非常可靠的声誉。
Most of the SQLite source code is devoted purely to testing and verification.
大多数源代码致力于纯粹的测试和查证。
An automated test suite runs millions and millions of test cases involving hundreds of millions of individual SQL statements and achieves 100% branch test coverage.
自动测试序列执行数百万测试实例，包括亿万独立SQL声明和实现100%分支覆盖测试。
SQLite responds gracefully to memory allocation failures and disk I/O errors.
对内存分配和磁盘读写错误响应很温和。
Transactions are ACID even if interrupted by system crashes or power failures.
事务符合ACID特性，甚至是在系统崩溃或断电的情况下。
All of this is verified by the automated tests using special test harnesses which simulate system failures.
这所有的一切都被证明，使用自动测试，用特殊的测试治理，刺激系统错误。
Of course, even with all this testing, there are still bugs.
当然，即便是有这些测试，仍旧存在BUG。
But unlike some similar projects (especially commercial competitors) SQLite is open and honest about all bugs and provides bugs lists and minute-by-minute chronologies of code changes.
但是不像类似的工程（特别是商业竞争者），SQLite对所有的BUG是开放且诚实的，提供BUG清单，以分钟为单位更改代码表。
The SQLite code base is supported by an international team of developers who work on SQLite full-time.
代码库由在SQLite全职工作的开发者组成的国际队伍支持。
The developers continue to expand the capabilities of SQLite and enhance its reliability and performance while maintaining backwards compatibility with the published interface spec, SQL syntax, and database file format.
开发人员不断地扩展SQLite的能力，增强可靠性和性能，同时维护向后兼容性，使用发布的接口规范、SQL语法、和数据库文件格式。
The source code is absolutely free to anybody who wants it, but professional support is also available.
The SQLite project was started on 2000-05-09.
本项目适于2000年5月9日。
The future is always hard to predict, but the intent of the developers is to support SQLite through the year 2050.
未来总是很难预测，但是开发者的意向是一直支持到2050年。
Design decisions are made with that objective in mind.
设计决策由这个目标决定。
We the developers hope that you find SQLite useful and we entreat you to use it well: to make good and beautiful products that are fast, reliable, and simple to use.
我们开发者希望，你能发现SQLite是有用的，我们恳求你好好使用它： 做优秀而漂亮工程，又快又可靠，便于使用。
Seek forgiveness for yourself as you forgive others.
当你原谅别人的时候，要为自己寻求原谅。
And just as you have received SQLite for free, so also freely give, paying the debt forward.
就像你免费获得了SQLite一样，所以也去免费的给予，支付债务向前。
当前最新版本：2017-06-08 (3.19.3)
Executive Summary -------------------摘要
Ref:https://www.sqlite.org/about.html
Full-featured SQL -------------------------------------全功能支持SQL
Billions and billions of deployments ----------------数十亿部署
Single-file database -----------------------------------单文件数据库
Public domain source code --------------------------开放源代码
All source code in one file (sqlite3.c) --------------所有源代码都在一个文件中
Small footprint ------------------------------------------内存占用小
Max DB size: 140 terabytes (247 bytes)----------- 数据库最大140T
Max row size: 1 gigabyte ------------------------------单行最大1G
Aviation-grade quality and testing ------------------航空级质量和测试
Zero-configuration -------------------------------------0配置
ACID transactions, even after power loss ---------支持事务ACID（原子性、一致性、隔离性、持久性）特性，甚至是在停电后
Stable, enduring file format --------------------------稳定持久文件格式
Extensive, detailed documentation -----------------广泛细致的文档
Long-term support -------------------------------------长期支持
SQLite简介
Ref：http://blog.csdn.net/codeeer/article/details/30237597/
SQLite是一款轻型的数据库，是遵守ACID的关联式数据库管理系统，它的设计目标是嵌入式的，而且目前已经在很多嵌入式产品中使用了它，它占用资源非常的低，在嵌入式设备中，可能只需要几百K的内存就够了。
支持 Windows/Linux/Unix等等主流的操作系统，同时能够跟很多程序语言相结合，比如Tcl、PHP、Java、C++、.Net等，还有ODBC接口，同样比起 Mysql、PostgreSQL这两款开源世界著名的数据库管理系统来讲，它的处理速度比他们都快。
SQLite 可视化管理工具
Ref：http://blog.csdn.net/shellching/article/details/7979969
SQLite Demo
Ref： http://www.jianshu.com/p/5c33be6ce89d
太复杂，不适合新手
