怎样使用ADOQuery2.Filter:='sup_company = '过滤空值(50分)

L

lbt

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GUEST, unregistred user!

• 2008-01-21

• #1

各位高手,怎样使用ADOQuery2.Filter:='sup_company =?'过滤空值,也就是?号那里写什么?在线等候.

 

L

lbt

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2008-01-21

• #2

麻烦告诉一下

 

G

gxw

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GUEST, unregistred user!

• 2008-01-22

• #3

ADOQuery2.Filter:='sup_company =null'

 

B

boy2002cn

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GUEST, unregistred user!

• 2008-01-22

• #4

'sup_company is null'

 

Y

ycluo

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GUEST, unregistred user!

• 2008-01-22

• #5

ADOQuery2.Filter:='sup_company ='''''

 

H

hrp123

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GUEST, unregistred user!

• 2008-01-22

• #6

ADOQuery2.Filter:='sup_company ='''''

 

L

lbt

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2008-01-23

• #7

谢谢