Question

I’m adding a record like this:

    Dim pathString As String = HttpContext.Current.Request.MapPath('Banking.mdb')     Dim odbconBanking As New OleDbConnection _              ('Provider=Microsoft.Jet.OLEDB.4.0;' & _              'Data Source=' + pathString)     Dim sql As String     sql = 'INSERT INTO tblUsers ( FirstName, LastName, Address, City, Province, Zip, Phone, UserName, [Password])' & _               ' VALUES ('' & firstName & '', '' & lastName & '', '' & address & _             '', '' & city & '', '' & province & '', '' & zip & '', '' & phone & '', '' & username & '', '' & password & '');'     odbconBanking.Open()     Dim cmd As New OleDbCommand(sql, odbconBanking)     cmd.ExecuteNonQuery()     odbconBanking.Close() 

The primary key is an autonumber field called UserID. So, how do I get the primary key of the record I just inserted?

Thanks.

Answer 1

I believe a parameterized query would look something like this:

Dim pathString As String = HttpContext.Current.Request.MapPath('Banking.mdb') Dim odbconBanking As New OleDbConnection _      ('Provider=Microsoft.Jet.OLEDB.4.0;' & _      'Data Source=' + pathString) Dim sql As String sql = 'INSERT INTO tblUsers ( FirstName, LastName, Address, City, Province, Zip, Phone, UserName, [Password])' & _       ' VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?);' odbconBanking.Open() Dim cmd As New OleDbCommand(sql, odbconBanking)  //Add Params here cmd.Parameters.Add(new OdbcParameter('@FirstName', firstName)) cmd.Parameters.Add(new OdbcParameter('@LastName', lastName)) //..etc  //End add Params here  cmd.ExecuteNonQuery() Dim newcmd As New OleDbCommand('SELECT @@IDENTITY', odbconBanking) uid = newcmd.ExecuteScalar  odbconBanking.Close() 

My syntax might be a bit off as I am more accustomed to using the Sql Server library and not the Odbc library, but that should get you started.