在C#程序中使用MYSQL数据库
一提起mysql数据库,好像就是在说java,jsp或者php,其实在所有程序中都可以使用mysql 数据库,其它的程序使用my sql数据库的方法是使用my sql 提供的odbc驱动,在.net 中可以使用类似于jdbc似的东东.它的名字是:MySQLDriverCS.dll.把它添加到.net的组件面板里,至于如何添加,则不是本篇的任务了(^_^)!
下面是创建一个数据库链接:
using MySQLDriverCS;
MySQLConnection conn = new MySQLConnection( new MySQLConnectionString("localhost","test","root","").AsString );
conn.Open();
如果你使用的是.net的集成开发环境(visual studio.net)那么在代码中输入MySQLDriverCS后再输入一个”.”就可以看到MySQLDriverCS名称空间中的所有的东西了.
下面是commond:
MySQLCommand cmd;
cmd = new MySQLDriverCS.MySQLCommand("DROP TABLE IF EXISTS test.mysqldrivercs_test",conn);
cmd.ExecuteNonQuery();
cmd.Dispose();
cmd = new MySQLDriverCS.MySQLCommand("CREATE TABLE test.mysqldrivercs_test("+"SettingID tinyint(3) unsigned NOT NULL auto_increment,"+"SettingValue text, "+"PRIMARY KEY (SettingID), UNIQUE KEY SettingID(SettingID), KEY SettingID_2 (SettingID))"+" TYPE=MyISAM COMMENT='MySQL test table'",conn);
cmd.ExecuteNonQuery();
cmd.Dispose();
下面是insert:
string Value = "Value";
int SettingID = 1;
new MySQLInsertCommand(conn,new object[,] {{"SettingID",SettingID},{"SettingValue",Value}},"mysqldrivercs_test");
下面是update:
Value = "Value2";
new MySQLUpdateCommand(conn,new object[,] {{"SettingValue",Value}},"mysqldrivercs_test",new object[,] {{"SettingID","=",SettingID}},null);
下面是select:
DataTable dt = new MySQLSelectCommand(conn,new string[] {"SettingID","SettingValue"},new string[] {"mysqldrivercs_test"},new object[,] {{"SettingID","=",SettingID}},null,null).Table;string storedValue = dt.Rows[0]["SettingValue"].ToString();
下面是delete:
new MySQLDeleteCommand(conn,"mysqldrivercs_test",new object[,] {{"SettingID","=",SettingID}},null);
关闭链接:
conn.Close();
下面是创建一个数据库链接:
using MySQLDriverCS;MySQLConnection conn = new MySQLConnection( new MySQLConnectionString("localhost","test","root","").AsString );conn.Open();如果你使用的是.net的集成开发环境(visual studio.net)那么在代码中输入MySQLDriverCS后再输入一个”.”就可以看到MySQLDriverCS名称空间中的所有的东西了.
下面是commond:
MySQLCommand cmd;cmd = new MySQLDriverCS.MySQLCommand("DROP TABLE IF EXISTS test.mysqldrivercs_test",conn);cmd.ExecuteNonQuery();cmd.Dispose();cmd = new MySQLDriverCS.MySQLCommand("CREATE TABLE test.mysqldrivercs_test("+"SettingID tinyint(3) unsigned NOT NULL auto_increment,"+"SettingValue text, "+"PRIMARY KEY (SettingID), UNIQUE KEY SettingID(SettingID), KEY SettingID_2 (SettingID))"+" TYPE=MyISAM COMMENT='MySQL test table'",conn);cmd.ExecuteNonQuery();cmd.Dispose();下面是insert:
string Value = "Value";int SettingID = 1;new MySQLInsertCommand(conn,new object[,] {{"SettingID",SettingID},{"SettingValue",Value}},"mysqldrivercs_test");
下面是update:
Value = "Value2";new MySQLUpdateCommand(conn,new object[,] {{"SettingValue",Value}},"mysqldrivercs_test",new object[,] {{"SettingID","=",SettingID}},null);下面是select:
DataTable dt = new MySQLSelectCommand(conn,new string[] {"SettingID","SettingValue"},new string[] {"mysqldrivercs_test"},new object[,] {{"SettingID","=",SettingID}},null,null).Table;string storedValue = dt.Rows[0]["SettingValue"].ToString();下面是delete:
new MySQLDeleteCommand(conn,"mysqldrivercs_test",new object[,] {{"SettingID","=",SettingID}},null);关闭链接:
conn.Close();
