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我剛接觸wincc，現(xiàn)在要在wincc里做一個月報表，需要每天在當天結(jié)束時將數(shù)據(jù)庫中的日表里的每項數(shù)據(jù)讀出來求平均值再寫入月表里，現(xiàn)在沒辦法實現(xiàn)數(shù)據(jù)讀取，可能是連接不到數(shù)據(jù)庫，
Dim objConnection
  Dim strConnectionString
  Dim opertime,device,command
  Dim strSQL
  Dim objCommand
  Dim DsnStr
  Dim dt
  Dim PV1,PV2,PV3,PV4,PV5,PV6,PV7,PV8,PV9,PV10,PV11,PV12,PV13,PV14,PV15,PV16
  Dim iday,imonth,iyear,ihour

  DsnStr="CC_sheet"
  strConnectionString = "Provider=MSDASQL;DSN="&DsnStr&";database=repotrdb;UID=sa;PWD=;"

  dt=Now() '系統(tǒng)時間
    imonth=Month(dt)
    iyear=Year(dt)
    iday=Day(dt)
    ihour=Hour(dt)
pv4="select influx from daydata where zyear="& iyear &  " And zmonth= " &imonth & "And zday=" & iday & " "
MsgBox pv4
'Set objConnection = CreateObject("ADODB.Connection")
'objConnection.ConnectionString = strConnectionString
  objConnection.Open
Set objCommand = CreateObject("ADODB.Command")
HMIRuntime.Trace strsql
objCommand.ActiveConnection = objConnection
objCommand.CommandText = strSQL
objCommand.Execute
objcomand
Set objCommand = Nothing
objConnection.Close
Set objConnection = Nothing

SQL語句在報表編輯器中的動態(tài)表格中測試是可以的

哪位高手知道的指點一下，急~~~~~