SQLite sql script:

CREATE TABLE BookKindList
(BookKindID INTEGER PRIMARY KEY AUTOINCREMENT,BookKindName varchar(500) not null,BookKindCode varchar(100) null,BookKindParent int null
)--添加
insert into BookKindList(BookKindName,BookKindCode,BookKindParent) values('目录','0003',1);
--查询
select * from BookKindList;select * from BookKindList where BookKindList.BookKindID=2;
--删除
delete from BookKindList where BookKindList.BookKindID=3;
--更新
update  BookKindList set BookKindName='文学',BookKindCode='0002',BookKindParent=1 where BookKindID=2;--返回添加自增ID
select last_insert_rowid();

SQLite 数据库连接字符

<?xml version="1.0" encoding="utf-8" ?>
<configuration><appSettings><add key="ConnectionAccess2003String"
value="Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=|DataDirectory|geovindu.mdb;Persist Security Info=True"/><add key="ConnectionAccess2007String"
value="Provider=Microsoft.ACE.OLEDB.12.0;Data
Source=|DataDirectory|geovindu.accdb;Persist Security Info=True"/><add key="ConnectionSQLString" value="Data
Source=LF-WEN\GEOVINDU;Initial Catalog=geovindu;User
ID=sa;Password=geovindu"/><add
key="ConnectionSQLiteString" value="Data
Source=geovindu.db3;Version=3;Password=geovindu;Pooling=true;FailIfMissing=false;"/><add key="ConnectionMySQLString" value="Database='geovindu';Data
Source='127.0.0.1';User
Id='root';Password='geovindu';charset='utf8';pooling=true;Port=3306;AllowZero Datetime=true;"/><add key="WebDAL" value="AccessDAL"/><!--<add key="WebDAL" value="SqlServerDAL"/>--><!--<add key="WebDAL" value="SqlSQLiteDAL"/>--><!--<add key="WebDAL" value="SqlMySQLDAL"/>--><!--<add key="WebDAL" value="SqlPostgreSQLDAL"/>--></appSettings></configuration>

Csharp操作SQLite 添加返回值

/// <summary>/// 涂聚文 20150212/// SQLite 添加返回值ID/// </summary>/// <param name="SQLString"></param>/// <param name="identity"></param>/// <param name="cmdParms"></param>/// <returns></returns>public static int ExecuteSql(string SQLString, out int identity, params SQLiteParameter[] cmdParms){string en = "";using (SQLiteConnection connection = new SQLiteConnection(connectionString)){using (SQLiteCommand cmd = new SQLiteCommand()){try{PrepareCommand(cmd, connection, null, SQLString, cmdParms);int rows = cmd.ExecuteNonQuery();cmd.Parameters.Clear();cmd.CommandText = "select last_insert_rowid();";en = cmd.ExecuteScalar().ToString();identity = int.Parse(en);cmd.Parameters.Clear();return rows;}catch (System.Data.OleDb.OleDbException E){throw new Exception(E.Message);}}}}/// <summary>/// 追回返回值/// SQLite涂聚文/// </summary>/// <param name="bookKindList"></param>/// <param name="id"></param>/// <returns></returns>public int InsertBookKindOut(BookKindListInfo bookKindList, out int id){int ret = 0;int tid = 0;try{StringBuilder str = new StringBuilder();str.Append("insert into BookKindList(BookKindName,BookKindCode,BookKindParent) values(");str.Append("@BookKindName,@BookKindCode,@BookKindParent);");               SQLiteParameter[] par = new SQLiteParameter[]{new SQLiteParameter("@BookKindName",DbType.String,1000),new SQLiteParameter("@BookKindCode",DbType.String,1000),new SQLiteParameter("@BookKindParent",DbType.Int32,4),//new SQLiteParameter("@BookKindID",DbType.Int32,4),};par[0].Value = bookKindList.BookKindName;par[1].Value = bookKindList.BookKindCode;par[2].Value = bookKindList.BookKindParent;//par[3].Direction = ParameterDirection.Output;//无效  不支持ret = SQLiteHelper.ExecuteSql(str.ToString(), out tid, par);if (ret > 0){//tid = ret;// (int)par[3].Value;}}catch (SQLiteException ex){throw ex;}id = tid;return ret;}

Csharp操作Access添加返回值

/// <summary>
///  Access 添加返迴ID值
///  涂聚文 2014-12-29
///  Geovin Du
/// 參考：  http://www.mikesdotnetting.com/article/54/getting-the-identity-of-the-most-recently-added-record
/// http://stackoverflow.com/questions/186544/identity-after-insert-statement-always-returns-0
/// </summary>
/// <param name="SQLString"></param>
/// <param name="identity"></param>
/// <param name="cmdParms"></param>
/// <returns></returns>
public static int ExecuteSql(string SQLString, out int identity, params OleDbParameter[] cmdParms)
{using (OleDbConnection connection = new OleDbConnection(connectionString)){using (OleDbCommand cmd = new OleDbCommand()){try{PrepareCommand(cmd, connection, null, SQLString, cmdParms);int rows = cmd.ExecuteNonQuery();cmd.CommandText = "Select @@Identity";identity = (int)cmd.ExecuteScalar();cmd.Parameters.Clear();return rows;}catch (System.Data.OleDb.OleDbException E){throw new Exception(E.Message);}}}
/// <summary>
/// Access 追加返回值
/// 涂聚文
/// 20141205
/// </summary>
/// <param name="bookKindList"></param>
/// <param name="id"></param>
/// <returns></returns>
public int InsertBookKindOut(BookKindListInfo bookKindList, out int id)
{int ret = 0;int tid = 0;try{StringBuilder str = new StringBuilder();str.Append("insert into BookKindList(BookKindName,BookKindCode,BookKindParent) values(");str.Append("@BookKindName,@BookKindCode,@BookKindParent);");OleDbParameter[] par = new OleDbParameter[]{new OleDbParameter("@BookKindName",OleDbType.VarChar,1000),new OleDbParameter("@BookKindCode",OleDbType.VarChar,1000),new OleDbParameter("@BookKindParent",OleDbType.Integer,4),//new OleDbParameter("@BookKindID",OleDbType.Integer,4),};par[0].Value = bookKindList.BookKindName;par[1].Value = bookKindList.BookKindCode;par[2].Value = bookKindList.BookKindParent;//par[3].Direction = ParameterDirection.Output;//无效  不支持ret = DbHelperOleDb.ExecuteSql(str.ToString(), out tid, par);if (ret > 0){//tid = ret;// (int)par[3].Value;}}catch (OleDbException ex){throw ex;}id = tid;return ret;
}