Sqlite 常用函数封装：修改密码，创建数据库、获取表段、字段，取值、插入、删除数据、执行Sqlite指令
以下是频繁用到的Sqlite函数，内容格式相对固定，封装一下有助于提高开发效率（^_^至少提高Codeeer的效率了）
而且，我发现Sqlite中文资料比较少，起码相对其他找起来要复杂些，服务一下大众~
我没有封装读取部分，因为数据库读取灵活性太大，封装起来难度也大，而且就算封装好了，也难以应付所有情况，还是建议根据实际情况设计代码逻辑。
解释下，为啥代码中的注释基本都用英文写了，因为这段时间在学双拼- -。可是还不太熟悉，打字超慢，而且Code的时候容易打断思路，好在~英文不多，而且这些都看不懂的话你……你要向我解释一下你是怎么一路学到数据库的 0。0
修改密码
///
/// Change Password
///
///
///
///
/// 创建数据库
///
/// Creat New Sqlite File
///
/// New Table Name
/// Words list of the New Table
/// Creat or Add to the Database(Using to make Multi Tables)
/// NewWords, string PassWord = null, bool CreatNew = true)
{
try
{
if (CreatNew)
{
//Creat Data File
SQLiteConnection.CreateFile(DataSource);
}
//Creat Table
using (SQLiteConnection conn = new SQLiteConnection())
{
SQLiteConnectionStringBuilder SCS = new SQLiteConnectionStringBuilder();
SCS.DataSource = DataSource;
SCS.Password = PassWord;
conn.ConnectionString = SCS.ToString();
conn.Open();
//Creat
string Bazinga = "create table [" + NewTable + "] (";
foreach (string Words in NewWords)
{
Bazinga += "[" + Words + "] TEXT COLLATE NOCASE,";
}
//Set Primary Key
//The Top item from the "NewWords"
Bazinga += @"PRIMARY KEY ([" + NewWords[0] + "]))";
DbCommand cmd = conn.CreateCommand();
cmd.Connection = conn;
cmd.CommandText = Bazinga;
cmd.ExecuteNonQuery();
}
return true;
}
catch (Exception E)
{
MessageBox.Show(E.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return false;
}
} 获取表段
///
/// Get Tables From Sqlite
///
/// list of Tables
public static List GetTables(string DataSource, string PassWord = null)
{
List ResultLst = new List();
try
{
using (SQLiteConnection conn = new SQLiteConnection())
{
SQLiteConnectionStringBuilder SCS = new SQLiteConnectionStringBuilder();
SCS.DataSource = DataSource;
SCS.Password = PassWord;
conn.ConnectionString = SCS.ToString();
conn.Open();
using (SQLiteCommand tablesGet = new SQLiteCommand("SELECT name from sqlite_master where type='table'", conn))
{
using (SQLiteDataReader tables = tablesGet.ExecuteReader())
{
while (tables.Read())
{
try
{
ResultLst.Add(tables[0].ToString());
}
catch (Exception E)
{
MessageBox.Show(E.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
}
}
}
catch (Exception E)
{
MessageBox.Show(E.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
return ResultLst;
} 获取字段
///
/// Get Words From Table->Sqlite
///
/// Target Table
/// list of Words
public static List GetWords(string DataSource, string TargetTable, string PassWord = null)
{
List WordsLst = new List();
using (SQLiteConnection conn = new SQLiteConnection())
{
SQLiteConnectionStringBuilder SCS = new SQLiteConnectionStringBuilder();
SCS.DataSource = DataSource;
SCS.Password = PassWord;
conn.ConnectionString = SCS.ToString();
conn.Open();
using (SQLiteCommand tablesGet = new SQLiteCommand(@"SELECT * FROM " + TargetTable, conn))
{
using (SQLiteDataReader Words = tablesGet.ExecuteReader())
{
try
{
for (int i = 0; i < Words.FieldCount; i++)
{
WordsLst.Add(Words.GetName(i));
}
}
catch (Exception E)
{
MessageBox.Show(E.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
}
return WordsLst;
} 取值
///
/// Get Values From Sqlite
///
/// list of Values
public static List GetValues(string DataSource, string Sql, string GetColumu, string PassWord = null)
{
List ResultLst = new List();
using (SQLiteConnection conn = new SQLiteConnection())
{
SQLiteConnectionStringBuilder SCS = new SQLiteConnectionStringBuilder();
SCS.DataSource = DataSource;
SCS.Password = PassWord;
conn.ConnectionString = SCS.ToString();
conn.Open();
using (SQLiteCommand cmd = new SQLiteCommand(Sql, conn))
{
using (SQLiteDataReader dr = cmd.ExecuteReader())
{
while (dr.Read())
{
try
{
ResultLst.Add(dr[GetColumu].ToString());
}
catch (Exception E)
{
MessageBox.Show(E.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
}
}
return ResultLst;
} 插入数据
///
/// Insert Data
///
///
///
/// 删除数据
///
/// Delete Date
///
///
///
///
///
/// 执行Sqlite指令
///
/// SQLiteCommand
///
///
///
///