public static void Dapper_Execute_Sample()
{
Console.WriteLine(String.Format("{0} Dapper_Execute_Sample", databaseProductType.ToString()));
Console.WriteLine("Start");
CdbcConnection con = UtilCommon.getConnection(databaseProductType);
string sqlInsert = @"INSERT INTO student(studentid, studentname, birthdate, photo) VALUES (:studentid, :studentname, :birthdate, :photo)";
string sqlUpdate = @"UPDATE student SET studentname=:studentname, birthdate=:birthdate, photo=:photo WHERE studentid=:studentid";
string sqlDelete = @"DELETE FROM student WHERE studentid=:studentid";
string sqlSelect = @"SELECT studentid, studentname, birthdate, photo FROM student WHERE studentid=:studentid";
int studentid1 = new System.Random(DateTime.Now.Millisecond).Next(1000);
byte[] photo1 = null;
//You can use the following code to insert the photo.
//byte[] photo1=System.IO.File.ReadAllBytes(@"photo file path");
var student1 = new Student()
{
studentid = studentid1, studentname = "Tom", birthdate = new DateTime(2004, 11, 24), photo = photo1
};
try
{
//Insert
int i = con.Execute(sqlInsert, student1);
Console.WriteLine("--------------------------");
Console.WriteLine("Sql : " + sqlInsert);
Console.WriteLine("student parameter: " + student1.ToString());
Console.WriteLine(String.Format("{0} Line(s) inserted.", i));
//Insert result
var studentDb = con.QuerySingle <Student>(sqlSelect, student1);
Console.WriteLine("student inserted: " + studentDb.ToString());
//update
//We will change the student's name and birthday then update database.
student1.studentname = "Tom2";
student1.birthdate = new DateTime(2004, 6, 11);
i = con.Execute(sqlUpdate, student1);
Console.WriteLine(String.Format("{0} Line(s) updated.", i));
//update result
studentDb = con.QuerySingle <Student>(sqlSelect, student1);
Console.WriteLine("student updated: " + studentDb.ToString());
//delete
i = con.Execute(sqlDelete, student1);
Console.WriteLine(String.Format("{0} Line(s) deleted.", i));
}
catch (Exception ex)
{
Console.WriteLine("Exception:");
Console.WriteLine(ex.Message);
}
Console.WriteLine("--------------------------");
Console.WriteLine("End");
}
public static void DataAdapter_Fill_Sample()
{
Console.WriteLine(String.Format("{0} DataAdapter_Fill_Sample", databaseProductType.ToString()));
Console.WriteLine("Start");
CdbcConnection con = UtilCommon.getConnection(databaseProductType);
string queryStr = "SELECT :VAR1 AS COLUMN1 FROM DUAL";
CdbcCommand cmd = new CdbcCommand(queryStr, con);
string guid = Guid.NewGuid().ToString();
CdbcParameter para = new CdbcParameter(":VAR1", CdbcOracleDbType.Varchar2);
para.Direction = ParameterDirection.Input;
para.Value = guid;
cmd.Parameters.Add(para);
try
{
CdbcDataAdapter adap = new CdbcDataAdapter(cmd);
DataSet ds = new DataSet();
adap.Fill(ds);
Console.WriteLine("--------------------------");
Console.WriteLine("Sql : " + queryStr);
Console.WriteLine("Parameter : VAR1=" + guid);
Console.WriteLine("--------------------------");
Console.WriteLine("Expected value:" + guid);
if (ds.Tables.Count > 0 && ds.Tables[0].Rows.Count > 0)
{
Console.WriteLine("Actual value:" + ds.Tables[0].Rows[0][0]);
}
}
catch (Exception ex)
{
Console.WriteLine("Exception:");
Console.WriteLine(ex.Message);
}
Console.WriteLine("--------------------------");
Console.WriteLine("End");
}
public static void Command_ExecuteNonQuery_Sample()
{
Console.WriteLine(String.Format("{0} Command_ExecuteNonQuery_Sample", databaseProductType.ToString()));
Console.WriteLine("Start");
CdbcConnection con = UtilCommon.getConnection(databaseProductType);
string queryStr = @"INSERT INTO CODE_SAMPLE(VAR1, NUM1, DATE1, CLOB1, BLOB1) VALUES (:VAR1, :NUM1, :DATE1, :CLOB1, :BLOB1)";
CdbcCommand cmd = new CdbcCommand(queryStr, con);
string guid = Guid.NewGuid().ToString();
CdbcParameter para = new CdbcParameter(":VAR1", CdbcOracleDbType.Varchar2);
para.Value = guid;
cmd.Parameters.Add(para);
para = new CdbcParameter(":NUM1", CdbcOracleDbType.Decimal);
para.Value = DateTime.Now.Second;
cmd.Parameters.Add(para);
para = new CdbcParameter(":DATE1", CdbcOracleDbType.Date);
para.Value = DateTime.Now;
cmd.Parameters.Add(para);
para = new CdbcParameter(":CLOB1", CdbcOracleDbType.Clob);
para.Value = DateTime.Now.Second;
cmd.Parameters.Add(para);
para = new CdbcParameter(":BLOB1", CdbcOracleDbType.Blob);
//para.Value = System.IO.File.ReadAllBytes(@"your file path");
cmd.Parameters.Add(para);
Console.WriteLine("--------------------------");
Console.WriteLine("Sample 1 : Insert a record into table CODE_SAMPLE");
Console.WriteLine("Sql : " + queryStr);
try
{
int i = cmd.ExecuteNonQuery();
Console.WriteLine(String.Format("{0} Line(s) inserted.", i));
}
catch (Exception ex)
{
Console.WriteLine("Exception:");
Console.WriteLine(ex.Message);
}
string queryStrDelete = @"DELETE FROM CODE_SAMPLE WHERE VAR1=:VAR1";
CdbcCommand cmdDelete = new CdbcCommand(queryStrDelete, con);
para = new CdbcParameter(":VAR1", CdbcOracleDbType.Varchar2);
para.Value = guid;
cmdDelete.Parameters.Add(para);
Console.WriteLine("--------------------------");
Console.WriteLine("Sample 2 : Delete the record we inserted before.");
Console.WriteLine("Sql : " + queryStrDelete);
try
{
int i = cmdDelete.ExecuteNonQuery();
Console.WriteLine(String.Format("{0} Line(s) deleted.", i));
}
catch (Exception ex)
{
Console.WriteLine("Exception:");
Console.WriteLine(ex.Message);
}
Console.WriteLine("--------------------------");
Console.WriteLine("End");
}
public static void CommandCollection_ExecuteMultiQuery_Sample()
{
Console.WriteLine(String.Format("{0} CommandCollection_ExecuteMultiQuery_Sample", databaseProductType.ToString()));
Console.WriteLine("Start");
Console.WriteLine("--------------------------");
Console.WriteLine("CommandCollection.ExecuteMultiQuery is original Method of CdbcCommandCollection.");
Console.WriteLine("It can execute multi command in same transaction.");
Console.WriteLine("It is designed to improve performance and Data Concurrency and Consistency");
Console.WriteLine("--------------------------");
Console.WriteLine("This sample will insert 3 records and than update one of the record.");
Console.WriteLine("--------------------------");
CdbcConnection con = UtilCommon.getConnection(databaseProductType);
string queryStr1 = @"INSERT INTO CODE_SAMPLE(VAR1 , DATE1 ) VALUES (:VAR1, SYSDATE)";
CdbcCommand cmd1 = new CdbcCommand(queryStr1, con);
string[] arrParas = new string[3];
for (int i = 0; i < arrParas.Length; i++)
{
arrParas[i] = Guid.NewGuid().ToString();
}
cmd1.ArrayBindCount = 3;
CdbcParameter prm =
new CdbcParameter("VAR1", CdbcOracleDbType.Varchar2);
prm.Value = arrParas;
cmd1.Parameters.Add(prm);
string queryStr2 = @"UPDATE CODE_SAMPLE SET DATE1 = DATE1+1 WHERE VAR1=:VAR1";
CdbcCommand cmd2 = new CdbcCommand(queryStr2, con);
prm = new CdbcParameter("VAR1", CdbcOracleDbType.Varchar2);
prm.Value = arrParas[0];
cmd2.Parameters.Add(prm);
Console.WriteLine("--------------------------");
Console.WriteLine("SQL 1 :" + queryStr1);
Console.WriteLine("Para 1 :");
for (int i = 0; i < arrParas.Length; i++)
{
Console.WriteLine(arrParas[i]);
}
Console.WriteLine("");
Console.WriteLine("SQL 2 :" + queryStr2);
Console.WriteLine("--------------------------");
try
{
CdbcCommandCollection cmdCollection = new CdbcCommandCollection();
cmdCollection.Add(cmd1);
cmdCollection.Add(cmd2);
cmdCollection.ExecuteMultiQuery();
for (int iCmd = 0; iCmd < cmdCollection.Count; iCmd++)
{
Console.WriteLine(String.Format("Command {0} Result : {1} ", iCmd, cmdCollection.ExecuteNonQueryResult[iCmd].ToString()));
}
}
catch (Exception ex)
{
Console.WriteLine("Exception:");
Console.WriteLine(ex.Message);
}
//Confirm Data
Console.WriteLine("---Confirm Data-----------------------");
string queryStrSelect = @"SELECT VAR1, DATE1 FROM CODE_SAMPLE WHERE VAR1 IN (:VAR1_0 ,:VAR1_1,:VAR1_2) ";
CdbcCommand cmdSelect = new CdbcCommand(queryStrSelect, con);
for (int i = 0; i < arrParas.Length; i++)
{
prm = new CdbcParameter("VAR1_" + i.ToString(), CdbcOracleDbType.Varchar2);
prm.Value = arrParas[i];
cmdSelect.Parameters.Add(prm);
}
try
{
DbDataReader reader = cmdSelect.ExecuteReader();
while (reader.Read())
{
for (int i = 0; i < reader.FieldCount; i++)
{
Console.WriteLine(String.Format("{0} = {1}", reader.GetName(i), reader.GetValue(i).ToString()));
}
}
}
catch (Exception ex)
{
Console.WriteLine("Exception:");
Console.WriteLine(ex.Message);
}
//Clear Data
Console.WriteLine("---Clear Data-----------------------");
string queryStrDelete = @"DELETE FROM CODE_SAMPLE WHERE VAR1=:VAR1";
CdbcCommand cmdDelete = new CdbcCommand(queryStrDelete, con);
cmdDelete.ArrayBindCount = 3;
prm =
new CdbcParameter("VAR1", CdbcOracleDbType.Varchar2);
prm.Value = arrParas;
cmdDelete.Parameters.Add(prm);
try
{
int i = cmdDelete.ExecuteNonQuery();
Console.WriteLine(String.Format("{0} Line(s) Deleted.", i));
}
catch (Exception ex)
{
Console.WriteLine("Exception:");
Console.WriteLine(ex.Message);
}
Console.WriteLine("--------------------------");
Console.WriteLine("End");
}
