https://github.com/htfy96/nanosql

Nano encapsulation of SQLite with transaction support
https://github.com/htfy96/nanosql

Last synced: about 2 months ago
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Nano encapsulation of SQLite with transaction support

• Host: GitHub
• URL: https://github.com/htfy96/nanosql
• Owner: htfy96
• License: mit
• Created: 2015-03-22T05:58:31.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2015-03-22T06:00:15.000Z (almost 10 years ago)
• Last Synced: 2023-02-26T18:11:53.541Z (almost 2 years ago)
• Language: C++
• Size: 137 KB
• Stars: 4
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
> NanoSQL是一个简单封装的C++ Sqlite3库，支持简单的事务，同时具有方便、迅速的语法

#基本内容

##Sql类

一个实例对应一个文件

```cpp

class Sql

{

		Sql(const std::string& filename); //文件名

		~Sql(); //安全析构

		Res raw_result; // by get_table(query)

		std::string lasterr; //上一个错误

		bool is_tran() const; //是否在一个事务中？

		int exec(const std::string& query, CallbackFunc cb=NULL); //执行语句，回调函数可以省略

		int get_table(const std::string& query); //把得到的table存到raw_result中

		inline char* result(long row, long col); //从1开始，快速获得raw_result中的结果

		inline char* colName(long col); //读取自raw_result

		int begin_tran(); //进入事务状态，错误会抛出runtime_error

		int end_tran();  //离开事务状态，错误会抛出runtime_error

};

```

##Res类

保存`get_table`的结果，析构时安全释放

```cpp

typedef struct

{

	char **arr;

	int row, col;

} Res;

```

#实例

详见目录下的`example.cpp`