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POMysqlCommand switching connection unexpectedtly
 

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  1. POMysqlCommand switching connection unexpectedtly
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    <p>I have a little problem with my MysqlConnection objets. I have those two connection strings in my app.config : </p> <pre><code>&lt;connectionStrings&gt; &lt;add name="bdpvcLocalhost" connectionString="Persist Security Info=False;server=localhost;Uid=root;Password=***;database=bdpvc" providerName="Mysql.Data.MySqlClient"/&gt; &lt;add name="bdpvcProduction" connectionString="server=pvcserver.pvcservprod.local;user id=pvc_app;Pwd=***;database=bdpvc" providerName="Mysql.Data.MySqlClient"/&gt; &lt;/connectionStrings&gt; </code></pre> <p>The first connection is for a local test database, the second one is for the real production database. Since i am still early in the developpement, I use my local database. I then use the following code (I cut some of the Parameters definition cause there is really a lot)</p> <pre><code>using (MySqlConnection connection = new MySqlConnection(_connectionString)) { connection.Open(); using (MySqlTransaction transaction = connection.BeginTransaction()) { const string sequenceQuery = "INSERT INTO sequence " + "(No_Sequence, No_Client, No_Produit, No_Version_Produit, " + " No_Soumission, No_Commande, No_Reference, Date_Livraison, " + "Date_Commande, Date_Soumission, Quantite, Status, Contact, " + "Notes, No_Production_Ancien, Erreur_Production, No_Fichier_Log, " + "No_Utilisateur, Date_Enregistrement, Extension_Fichier_Fax, Uuid) " + "VALUES(?No_Sequence, ?No_Client, ?No_Produit, ?No_Version_Produit, " + "?No_Soumission, ?No_Commande, ?No_Reference, ?Date_Livraison, ?Date_Commande, " + "?Date_Soumission, ?Quantite, ?Status, ?Contact, ?Notes, ?No_Production_Ancien, " + "?Erreur_Production, ?No_Fichier_Log, ?No_Utilisateur, ?Date_Enregistrement, " + "?Extension_Fichier_Fax, ?Uuid)"; const string selectSequenceNoQuery = "SELECT MAX(No_Sequence) AS Valeur_No_Increment FROM sequence"; const string updateSequenceNoQuery = "UPDATE tables SET Valeur_No_Increment = ?Valeur_No_Increment WHERE Nom_Tables = 'sequence'"; int currentIncrement = 0; MySqlCommand selectNoSequenceCommand = new MySqlCommand(selectSequenceNoQuery, connection, transaction); MySqlCommand updateNoSequenceCommand = new MySqlCommand(updateSequenceNoQuery, connection, transaction); MySqlCommand insertSequenceCommand = new MySqlCommand(sequenceQuery, connection, transaction); //------------------------------ //This query execute perfectly! currentIncrement = Int32.Parse(selectNoSequenceCommand.ExecuteScalar().ToString()); insertSequenceCommand.Parameters.Add("?No_Sequence", MySqlDbType.String); //Lots and lot of parameters definition foreach (Sequence sequence in _sequences) { currentIncrement++; sequence.No_Sequence = currentIncrement.ToString(); insertSequenceCommand.Parameters["?No_Sequence"].Value = sequence.No_Sequence; //Lots and lots of value assignement //--------------------------------- //But this one doesn't use the right user! insertSequenceCommand.ExecuteNonQuery(); Console.WriteLine("Inserted new sequence with Uuid " + sequence.Uuid + " and increment " + sequence.No_Sequence); } updateNoSequenceCommand.Parameters.AddWithValue("?Valeur_No_Increment", currentIncrement); updateNoSequenceCommand.ExecuteNonQuery(); transaction.Commit(); } } </code></pre> <p>The first query execute just fine. However, the second query isn't able to execute, because "the user <code>pvc_app</code> doesn't exists". <em>But I am connecting to my local database as root! And never in my code do I switch connection string!</em> I tried deleting the second connection string in app.config, but it kept trying to connect as <code>pvc_app</code>. I rebuild the application multiple time, rebooted my computer and even uninstalled/reinstalled the ADO.NET connector, but it kept trying to connect as pvc_app! Am I doing something wrong here?</p> <p>Now, where is located this mysterious "connection string cache" so I can kill it with my bare hand? Cause it's really making my life a misery right now.</p>
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    1. USLaurent Bourgault-Roy
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