如果在Access中为空，则将字段从一列移动到另一列

Question

下面是一个即时消息的表格。我想从[Field1]栏中选择栏位并直接移至[Field2]栏。

结果会是这样

字段2

Browser 
com.android.browser 
com.android.browser.BrowserActivity 

Email 
com.android.email 
com.android.email.activity.Welcome 

Phone 
com.android.contacts 
com.android.contacts.activities.PCUDialtactsActivity 

Gallery 
com.android.gallery3d 
com.android.gallery3d.app.Gallery 

Tắt màn hình 
com.katecca.screenofflockdonate 
com.katecca.screenofflockdonate.MainHelper 

Messaging 
com.android.mms 
com.android.mms.ui.ConversationList 

Simple mode 
com.pantech.app.skysettings.simplemode 
com.pantech.app.skysettings.simplemode.simplemodesettingshrotcutActivity 

Answer 1

这可能会做你的需要：

SELECT iif(isnull(Field2), Field1, Field2) as [yourColumnTitle] 
FROM yourTableName 

从这个

除了你需要添加一个列的数据类型=是否并将其设置为true吨影响，那么你可以

SELECT iif(NewColumn <> 0, Field1, Field2) as [yourColumnTitle] 
FROM yourTableName