C#操作操作SQLite数据库方法小结数据库方法小结(创建创建,连接连接,插入插入,查询查询,删除等删除等)
主要介绍了C#操作SQLite数据库方法,包括针对SQLite数据库的创建,连接,插入,查询,删除等操作,并提供了一个SQLite的封装类,需要的朋友可以参考下
本文实例讲述了C#操作SQLite数据库方法。分享给大家供大家参考,具体如下:
SQLite介绍介绍
SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine.
SQLite是一个开源、免费的小型RDBMS(关系型数据库),能独立运行、无服务器、零配置、支持事物,用C实现,内存占用较小,支持绝大数的SQL92标准。
SQLite数据库官方主页:http://www.sqlite.org/index.html
C#操作操作SQLite Database
C#下SQLite操作驱动dll下载:System.Data.SQLite
C#使用SQLite步骤:
(1)新建一个project
(2)添加SQLite操作驱动dll引用
(3)使用API操作SQLite DataBase
using System;
using System.Data.SQLite;
namespace SQLiteSamples
{
class Program
{
//数据库连接
SQLiteConnection m_dbConnection;
static void Main(string[] args)
{
Program p = new Program();
}
public Program()
{
createNewDatabase();
connectToDatabase();
createTable();
fillTable();
printHighscores();
}
//创建一个空的数据库
void createNewDatabase()
{
SQLiteConnection.CreateFile("MyDatabase.sqlite");
}
//创建一个连接到指定数据库
void connectToDatabase()
{
m_dbConnection = new SQLiteConnection("Data Source=MyDatabase.sqlite;Version=3;");
m_dbConnection.Open();
}
//在指定数据库中创建一个table
void createTable()
{
string sql = "create table highscores (name varchar(20), score int)";
SQLiteCommand command = new SQLiteCommand(sql, m_dbConnection);
command.ExecuteNonQuery();
}
//插入一些数据
void fillTable()
{
string sql = "insert into highscores (name, score) values ('Me', 3000)";
SQLiteCommand command = new SQLiteCommand(sql, m_dbConnection);
command.ExecuteNonQuery();
sql = "insert into highscores (name, score) values ('Myself', 6000)";
command = new SQLiteCommand(sql, m_dbConnection);
command.ExecuteNonQuery();
sql = "insert into highscores (name, score) values ('And I', 9001)";
command = new SQLiteCommand(sql, m_dbConnection);
command.ExecuteNonQuery();
}
//使用sql查询语句,并显示结果
void printHighscores()
{
string sql = "select * from highscores order by score desc";
SQLiteCommand command = new SQLiteCommand(sql, m_dbConnection);
SQLiteDataReader reader = command.ExecuteReader();
while (reader.Read())
Console.WriteLine("Name: " + reader["name"] + " Score: " + reader["score"]);
Console.ReadLine();
}
}
}
关于SQLite的connection string说明:http://www.connectionstrings.com/sqlite/
SQLite GUI客户端列表:http://www.sqlite.org/cvstrac/wiki?p=ManagementTools
SQLite Administrator下载地址:http://download.orbmu2k.de/files/sqliteadmin.zip
操作操作SQLite Database的的C#帮助类帮助类SQLite Helper
将一些常用的功能封装一下,封装成SQLite Helper类
using System;
using System.Data;
using System.Text.RegularExpressions;
using System.Xml;
using System.IO;
using System.Collections;
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