I've done some searching for the answer, but only find a lot of PHP answers. I need this for a C# application. Can any one point me in the right direction?
I'm doing this, but this only returns the first row into开发者_如何学Python my variable:
Query("SELECT SaksNummer FROM casetracking")
public static string Query(string query)
{
string x;
mysqlCon.Open();
cmd = new MySqlCommand(query, mysqlCon);
x = cmd.ExecuteScalar().ToString();
mysqlCon.Close();
return x;
}
ExecuteScalar is designed to only return one (thus scalar) value:
Executes the query, and returns the first column of the first row in the result set returned by the query. Extra columns or rows are ignored.
Try using ExecuteReader. Example:
public void CreateMySqlDataReader(string mySelectQuery, MySqlConnection myConnection)
{
MySqlCommand myCommand = new MySqlCommand(mySelectQuery, myConnection);
myConnection.Open();
MySqlDataReader myReader;
myReader = myCommand.ExecuteReader();
try
{
while(myReader.Read())
{
Console.WriteLine(myReader.GetString(0));
}
}
finally
{
myReader.Close();
myConnection.Close();
}
}
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