vb.net - SQL: Query 2 tables to get latest date for each record -


i have 2 tables want query customer , service

customer table

    cnum       lastname        address       phone        comments             2         mckenzie        main street   1234567898   none      3         stevenson       south street  1225448844   none      4         adams           north street  1234545454   none

service 

     incidentnum     cnum      servicedate      status       category      lastupdated       x1               2        02-21-2013       closed       repair        02-21-2013      c2               2        05-12-2013       open         installation  05-13-2013      d2               3        05-01-2013       closed       repair        05-05-2013      f2               4        05-12-2013       open         repair        05-12-2013

basically want display records latest update each customer record, regardless if status closed or open.

final:

    cnum    lastname     address        phone        category       last service      2      mckenzie     main street    1234567898   installation   05-13-2013      3      stevenson    south street   1225448844   repair         05-05-2013      4      adams        north street   1234545454   repair         05-12-2013

im using oledb, project in vb. input appreciated. thank in advance!

can please try this?

select c.cnum, c.lastname, c.address, c.phone, s.category, s.servicedate  customer c,service s c.cnum = s.cnum group c.cnum having s.lastupdated = max(s.lastupdated)

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