ora ho provato con la libreria JdbcSQL, in debug funziona correttamente in release mode non riesce a connettersi al database, sbaglio sicuramente qualcosa ma non capiscoo...riesci a darmi una dritta??
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server.
#Region  Project Attributes
   #ApplicationLabel: B4A Example
   #VersionCode: 1
   #VersionName:
   'SupportedOrientations possible values: unspecified, landscape or portrait.
   #SupportedOrientations: unspecified
   #CanInstallToExternalStorage: False
#End Region
#Region  Activity Attributes
   #FullScreen: False
   #IncludeTitle: True
   #AdditionalJar: mysql-connector-java-5.1.34-bin.jar
#End Region
Sub Process_Globals
   'These global variables will be declared once when the application starts.
   'These variables can be accessed from all modules.
   '#AdditionalJar: mysql-connector-java-5.0.8-bin.jar
   
   Dim list As List
   list.Initialize
End Sub
Sub Globals
   'These global variables will be redeclared each time the activity is created.
   'These variables can only be accessed from this module.
   
   Private ListView1 As ListView
End Sub
Sub Activity_Create(FirstTime As Boolean)
   'Do not forget to load the layout file created with the visual designer. For example:
   Activity.LoadLayout("Layout1")
End Sub
Sub Activity_Resume
End Sub
Sub Activity_Pause (UserClosed As Boolean)
End Sub
Sub Button1_Click
   Dim sql As JdbcSQL
   Dim jsql As JdbcResultSet
   sql.Initialize2("com.mysql.jdbc.Driver", "jdbc:mysql://sql2.freesqldatabase.com:3306/databasename","user","password")
   jsql=sql.ExecQuery("select ragsoc from aappuntamento ")
   Do While jsql.NextRow
       Log(jsql.GetString("ragsoc"))
   Loop
   sql.Close
End Sub