From the
Ruby on Windows blog.
A simple class for working with Microsoft Access databases via win32ole and ADO.
class AccessDb
attr_accessor :mdb, :connection, :data, :fields
def initialize(mdb=nil)
@mdb = mdb
@connection = nil
@data = nil
@fields = nil
end
def open
connection_string = 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source='
connection_string << @mdb
@connection = WIN32OLE.new('ADODB.Connection')
@connection.Open(connection_string)
end
def query(sql)
recordset = WIN32OLE.new('ADODB.Recordset')
recordset.Open(sql, @connection)
@fields = []
recordset.Fields.each do |field|
@fields << field.Name
end
begin
@data = recordset.GetRows.transpose
rescue
@data = []
end
recordset.Close
end
def execute(sql)
@connection.Execute(sql)
end
def close
@connection.Close
end
end
We would use this AccessDb class as follows:
db = AccessDb.new('c:\Baseball\lahman54.mdb')
db.open
db.query("SELECT * FROM AllStar WHERE playerID = 'conceda01';")
field_names = db.fields
rows = db.data
db.execute("INSERT INTO HallOfFame VALUES ('Dave', 'Concepcion');")
db.close
Further details can be found
here.