Question

I am building a booking service in VB using Visual Studio 2012 and it uses a database. I was wondering how to rearrange dates from VB format (“MM-dd-yyyy”) to MySQL date format (“yyyy-MM-dd”). Any suggestions would be greatly appreciated 🙂

Answer 1

The Date.ToString method allows you to specify a format:

Dim d = Date.Now
d.ToString("yyyy-MM-dd")

However, it would be MUCH better to use a parameterized command using an actual Date variable and let the system convert for you, since the actual string format you need will depend on your current culture. For instance:

Dim d = Date.Now
Using command As IDbCommand = connection.CreateCommand()
    command.CommandText = "UPDATE Table SET Column = @ColumnValue"
    Dim parameter As IDbDataParameter = command.CreateParameter()
    parameter.ParameterName = "@ColumnValue"
    parameter.Value = d
    command.Parameters.Add(parameter)
    command.ExecuteNonQuery()
End Using