主题：有这样的语法吗

Dim dt As DataTable
Dim cmd As new SQLCommand
cmd.Connecttionname  = "erp"
cmd.CommandText="select * from aeg00000 where centercode='0100' "

dt=cmd.ExecuteReader

DataTables("gride").fill("select a.planid,b.classa from {dt},a {gridc} b where a.itemcode=b.itemcode",True)

gridc ，gride为内部表