static void SelectDataBack(MySqlConnection conn) { string sql = "select * from test001"; var cmd = new MySqlCommand(sql, conn); #if DEBUG conn.dbugPleaseBreak = true; #endif //this is very basic mapper*** var reader = cmd.ExecuteReader(); var mapper = Mapper.Map((SimpleInfo t, int col_id, string col2, string col3) => { t.col1 = col_id; t.col2 = col2; }); mapper.DataReader = reader; while (reader.Read()) { //simple map query result to member of the target object //we create simpleinfo and use mapper to map field var simpleInfo = mapper.Map(new SimpleInfo()); } reader.Close(); }
static void SelectDataBack(MySqlConnection conn) { string sql = "select * from test001"; var cmd = new MySqlCommand(sql, conn); #if DEBUG conn.dbugPleaseBreak = true; #endif var reader = cmd.ExecuteReader(); while (reader.Read()) { //test immediate close reader.Close(); } reader.Close(); }
public static void T_PrepareStatement() { var connStr = GetMySqlConnString(); var conn = new MySqlConnection(connStr); conn.Open(); { string sql = "drop table if exists test001"; var cmd = new MySqlCommand(sql, conn); cmd.ExecuteNonQuery(); } { string sql = "create table test001(col_id int(10) unsigned not null auto_increment, col1 int(10)," + "col2 char(2),col3 varchar(255),col4 datetime, primary key(col_id) )"; var cmd = new MySqlCommand(sql, conn); cmd.ExecuteNonQuery(); } { string sql = "insert into test001(col1,col2,col3,col4) values(?col1,?col2,?col3,?col4)"; var cmd = new MySqlCommand(sql, conn); cmd.Prepare(); for (int i = 0; i < 100; ++i) { var pars = cmd.Parameters; pars.AddWithValue("?col1", 10); pars.AddWithValue("?col2", "AA"); pars.AddWithValue("?col3", "0123456789"); pars.AddWithValue("?col4", "0001-01-01"); cmd.ExecuteNonQuery(); } } { string sql = "select col1,col2 from test001 where col1>?col1_v"; var cmd = new MySqlCommand(sql, conn); cmd.Prepare(); cmd.Parameters.AddWithValue("?col1_v", 0); var reader = cmd.ExecuteReader(); while (reader.Read()) { } reader.Close(); } conn.Close(); Report.WriteLine("ok"); }
public static void T_StoreProcMultiResultSet() { var connStr = GetMySqlConnString(); var conn = new MySqlConnection(connStr); //Console.WriteLine("1"); conn.Open(); // Console.WriteLine("2"); { string createStoreProcSql = @"DROP PROCEDURE IF EXISTS multi;"; var cmd = new MySqlCommand(createStoreProcSql, conn); // Console.WriteLine("3"); cmd.ExecuteNonQuery(); } { string createStoreProcSql = @"CREATE PROCEDURE multi() BEGIN SELECT 1 as A; SELECT 2 as B; END"; //Console.WriteLine("4"); var cmd = new MySqlCommand(createStoreProcSql, conn); cmd.ExecuteNonQuery(); } { // Console.WriteLine("5"); string callProc = "call multi();"; var cmd = new MySqlCommand(callProc, conn); var reader = cmd.ExecuteReader(); while (reader.Read()) { // Console.WriteLine("6"); //we read each row from int data1 = reader.GetInt32(0); } //Console.WriteLine("7"); reader.Close(); } //-------------------------- conn.Close(); // Report.WriteLine("ok"); }
static void SelectDataBack(MySqlConnection conn) { string sql = "select * from test001"; var cmd = new MySqlCommand(sql, conn); #if DEBUG conn.dbugPleaseBreak = true; #endif var reader = cmd.ExecuteReader(); while (reader.Read()) { //test immediate close //reader.Close(); object o0 = reader.GetValue(0); object o1 = reader.GetValue(1); object o2 = reader.GetValue("col3"); object o3 = reader.GetValue("col4"); } reader.Close(); }
public static void T_Select_sysdate() { int n = 100; long total; long avg; var connStr = GetMySqlConnString(); var conn = new MySqlConnection(connStr); conn.Open(); Test(n, TimeUnit.Ticks, out total, out avg, () => { var cmd = new MySqlCommand("select sysdate()", conn); var reader = cmd.ExecuteReader(); if (reader.Read()) { var dtm = reader.GetDateTime(0); } reader.Close(); }); Report.WriteLine("avg:" + avg); conn.Close(); }
public static void T_StoreProcMultiResultSet2() { var connStr = GetMySqlConnString(); var conn = new MySqlConnection(connStr); //Console.WriteLine("1"); conn.Open(); PrepareTable1(conn); // Console.WriteLine("2"); { string createStoreProcSql = @"DROP PROCEDURE IF EXISTS multi;"; var cmd = new MySqlCommand(createStoreProcSql, conn); // Console.WriteLine("3"); cmd.ExecuteNonQuery(); } { string createStoreProcSql = @"CREATE PROCEDURE multi() BEGIN SELECT 1011 as A; SELECT 1022 as B; select col_id from test001; END"; //Console.WriteLine("4"); var cmd = new MySqlCommand(createStoreProcSql, conn); cmd.ExecuteNonQuery(); } { // Console.WriteLine("5"); string callProc = "call multi();"; var cmd = new MySqlCommand(callProc, conn); var reader = cmd.ExecuteReader(); //access to sub table MySqlSubTable currentSubTable; while (reader.Read()) { MySqlSubTable subTable = reader.CurrentSubTable; if (subTable != currentSubTable) { //change to new table currentSubTable = subTable; } // Console.WriteLine("6"); //we read each row from int data1 = reader.GetInt32(0); Console.WriteLine(data1); } //Console.WriteLine("7"); reader.Close(); } //-------------------------- conn.Close(); // Report.WriteLine("ok"); }
public static void T_NullData() { var connStr = GetMySqlConnString(); var conn = new MySqlConnection(connStr); conn.Open(); { string sql = "drop table if exists test001"; var cmd = new MySqlCommand(sql, conn); cmd.ExecuteNonQuery(); } { string sql = "create table test001(col_id int(10) unsigned not null auto_increment, myname varchar(20),mydtm datetime, col1 char(2)," + "col2 varchar(10), primary key(col_id) )"; var cmd = new MySqlCommand(sql, conn); cmd.ExecuteNonQuery(); } { string sql = "insert into test001(myname) values(?myname)"; var cmd = new MySqlCommand(sql, conn); cmd.Prepare(); cmd.Parameters.AddWithValue("?myname", "\"a"); //empty string //cmd.Parameters.AddWithValue("?col1", "OK1"); //width =2 ,so in MySQL 5.6 strict mode, err-> data is too long for column //cmd.Parameters.AddWithValue("?col2", "1000"); cmd.ExecuteNonQuery(); //ppctx.Close(); } { string sql = "select col2,myname,mydtm from test001"; var cmd = new MySqlCommand(sql, conn); cmd.Prepare(); var reader = cmd.ExecuteReader(); while (reader.Read()) { string f0 = reader.GetString(0); string f1 = reader.GetString("myname"); DateTime dtm = reader.GetDateTime(2); } reader.Close(); } conn.Close(); Report.WriteLine("ok"); }
public static void T_Select_sysdate2() { var connStr = GetMySqlConnString(); var conn = new MySqlConnection(connStr); conn.Open(() => { var cmd = new MySqlCommand("select sysdate()", conn); cmd.ExecuteReader(reader => { if (reader.Read()) { var dtm = reader.GetDateTime(0); } reader.Close(() => { conn.Close(() => { }); }); }); }); }
static bool ReadAll(MySqlConnection conn) { string sql = "select mydata from testmore"; var cmd = new MySqlCommand(sql, conn); //cmd.Prepare(); var reader = cmd.ExecuteReader(); string data = ""; int count = 0; while (reader.Read()) { data = reader.GetString(0); Console.WriteLine("data["+(++count)+"] : " + data); } reader.Close(); return true; }
public static void T_InsertBlobData() { var connStr = GetMySqlConnString(); var conn = new MySqlConnection(connStr); conn.Open(); conn.UpdateMaxAllowPacket(); //DropIfExist(conn); //CreateNewTable(conn); //InsertMore(conn); //if (ReadAll(conn)) //{ // return; //} { string sql = "drop table if exists test001"; var cmd = new MySqlCommand(sql, conn); cmd.ExecuteNonQuery(); } { string sql = "create table test001(col_id int(10) unsigned not null auto_increment, mydata longblob,primary key(col_id)) ENGINE=MyISAM DEFAULT CHARSET=latin1"; var cmd = new MySqlCommand(sql, conn); cmd.ExecuteNonQuery(); } //create sample blob byte[] data = CreateTestData(); uint lastInsertId = 0; //int testdata_crc32 = 0; { string sql = "insert into test001(mydata) values(?mydata)"; var cmd = new MySqlCommand(sql, conn); cmd.Prepare(); //testdata_crc32 = SharpConnect.CRC32Calculator.CalculateCrc32(data); cmd.Parameters.AddWithValue("?mydata", data); for(int i = 0; i < 5; i++) { cmd.ExecuteNonQuery(); } lastInsertId = cmd.LastInsertedId; } { if (lastInsertId > 0) { //test download back string sql = "select mydata from test001 where col_id<=?col_id"; var cmd = new MySqlCommand(sql, conn); cmd.Prepare(); cmd.Parameters.AddWithValue("?col_id", lastInsertId); var reader = cmd.ExecuteReader(); while (reader.Read()) { byte[] dataBuffer = reader.GetBuffer(0); if (Match(data, dataBuffer)) { Console.WriteLine("All Matching!!!"); } else { Console.WriteLine("Some byte not match!!"); } } reader.Close(); } } conn.Close(); Report.WriteLine("ok"); }
public static void Test1_Select() { ConnectionConfig config = new ConnectionConfig("root", "root"); config.database = "test"; MySqlConnection sqlConn = new MySqlConnection(config.host, config.user, config.password, config.database); sqlConn.UseConnectionPool = true; sqlConn.InternalOpen(); string sql = "select * from ??t1 where ??c1 > ?n1 and ??c1 < ?n2"; int testN1 = 4510; int testN2 = 4520; MySqlCommand command = new MySqlCommand(sql, sqlConn); command.Parameters.SetSqlPart("??t1", "saveimage"); command.Parameters.SetSqlPart("??c1", "idsaveImage"); command.Parameters.AddWithValue("?n1", testN1); command.Parameters.AddWithValue("?n2", testN2); var reader = command.ExecuteReader(); int count = 0; while (reader.Read()) { Console.WriteLine("Id : " + reader.GetInt32(0)); Console.WriteLine("Buffer size : " + reader.GetBuffer(1).Length); ++count; if (count >= 3) { break; } } reader.Close(); }