主题：有几个虫子

1.外部查询表能够编辑。
2.预览sql命令不能显示查询结果。
3.下面的代码为什么提示出错呢？sql语句在sql查询管理器中执行正常，但是在FOXTABLE中的命令窗口执行错误如图
Dim cmd1 As New SQLCommand
Dim cmd2 As New SQLCommand
Dim cmd3 As New SQLCommand
Dim cmd4 As New SQLCommand
Dim Count AS Integer
Dim Count1 AS Integer
Dim Count2 AS Integer
Dim Count3 AS Integer
Dim Count4 AS Integer
cmd1.CommandText = "update aef00000 set aef00000.deptcode=b.deptcode from aef00000 a,abb00000 b where a.itemcode=b.itemcode and  a.deptcode='' and a.centercode='0100' and a.plannum<>0"
Count1= cmd1.ExecuteNonQuery()
cmd2.CommandText = "update aef00000 set aef00000.workcentercode=b.workcentercode from aef00000 a,abc00000 b where a.itemcode=b.itemcode and  a.workcentercode='' and a.centercode='0100' and a.plannum<>0 and b.code='0001'"
Count2= cmd2.ExecuteNonQuery()
cmd3.CommandText = "update aeg00000 set aeg00000.deptcode=b.deptcode from aeg00000 a,abb00000 b where a.itemcode=b.itemcode and  a.deptcode='' and a.centercode='0100' and a.plannum<>0"
Count3= cmd3.ExecuteNonQuery()
cmd4.CommandText = "update aeg00000 set aeg00000.workcentercode=b.workcentercode from aeg00000 a,abc00000 b where a.itemcode=b.itemcode and  a.workcentercode='' and a.centercode='0100' and a.plannum<>0 and b.code='0001'"
Count4= cmd4.ExecuteNonQuery()
count=Count1+Count2+Count3+Count4
Messagebox.Show( "总共更新" & Count & "行！")
此主题相关图片如下：pic036.jpg

Dim cmd As New SQLCommand
Dim Count AS Integer
cmd .CommandText = "update aeg00000 set plandesc=contractno from aeg00000 where centercode='0100' and finishnum=0 and ifprocess=0 and warehousecode='0110'"
Count= cmd.ExecuteNonQuery()
Messagebox.Show( "总共删除" & Count & "行!")

这段代码执行报错，为什么呢？
在SQL查询管理器中没问题的呀？

老大，帮我分析分析上面的红色部分有什么问题呀，贴图考出来
此主题相关图片如下：pic043.jpg

老大，这个词语改成更新也报错的，所以不是它的问题

单独一行指定数据源还是在更新语句中使用dbo.erp.aeg00000格式