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Easp.db.Exec 执行SQL语句，执行成功、失败都返回0 #48

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
我使用Easp.db.Exec 执行SQL语句，无论执行成功、失败都返回0。

我的语句：
Set rs = Easp.db.Exec("Delete From [ZW] a Where a.ZWID ="&ZWID&" And not 
exists (select top 1 ZWMC from [User] b where b.ZWID=a.ZWID)")

使用这个语句的要求是：删除[ZW]表a.ZWID 
="&ZWID前判断是否已经在[User]表中使用，已经
使用，不删除，否则删除！
我的语句能够达到我的要求，但怎么得到“如果是执行SQL语��
�，执行成功返回1，执行失败返回
0”呢？是我用错了吗？

Original issue reported on code.google.com by yiye.c...@gmail.com on 17 Oct 2009 at 2:20

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
执行之前写Easp.db.dbConn=Conn

Original comment by wja...@gmail.com on 19 Oct 2009 at 8:31

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
有的，执行之前写Easp.db.dbConn=Conn，
不然怎么执行删除的？

而我的语句：执行删除是成功的！

Original comment by yiye.c...@gmail.com on 21 Oct 2009 at 2:19

GoogleCodeExporter commented 9 years ago 
返回值是不用 Set 的。
直接 输出 就好。

Original comment by Tainray@gmail.com on 21 Oct 2009 at 2:53

GoogleCodeExporter commented 9 years ago 
是这样吗？
rs = Easp.db.Exec("Delete From [ZW] a Where a.ZWID ="&ZWID&" And not 
exists (select top 1 ZWMC from [User] b where b.ZWID=a.ZWID)")

如果是的话，无论执行成功、失败，都返回rs的值为1 。

Original comment by yiye.c...@gmail.com on 21 Oct 2009 at 3:48

GoogleCodeExporter commented 9 years ago 
rs = Easp.db.Exec("Delete From [ZW] a Where a.ZWID ="&ZWID）

经测试，以上语句执行成功返回1，执行失败返回0 。

rs = Easp.db.Exec("Delete From [ZW] a Where a.ZWID ="&ZWID&" And not 
exists (select top 1 ZWMC from [User] b where b.ZWID=a.ZWID)")
无论执行成功、失败，都返回rs的值为1 。

Set rs = Easp.db.Exec("Delete From [ZW] a Where a.ZWID ="&ZWID&" And not 
exists (select top 1 ZWMC from [User] b where b.ZWID=a.ZWID)")

无论执行成功、失败都返回0。

Original comment by yiye.c...@gmail.com on 21 Oct 2009 at 4:04

GoogleCodeExporter commented 9 years ago 
执行成功是指语句正确被执行，而不是指有数据被删除才叫��
�行成功噢，这一点你要区分开。
执行失败的意思是这句SQL有问题，不能被正确执行。

Original comment by Tainray@gmail.com on 23 Oct 2009 at 1:48

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
哦！是我误解了！谢谢！

那我想对“数据删除”成功与否进行判断，要怎么做？

Original comment by yiye.c...@gmail.com on 26 Oct 2009 at 1:47