我这样写为什么不对? DoCmd.RunSQL “delete * from 源数据表” ,我发现能把新增的记录删除,以前的记录却删除不了(也就是不能删除真个表的记录),这是为什么?应该怎么写才对?作者: roych 时间: 2011-3-17 09:14
不可能啊。这里又没有其它条件。。。传上附件看看吧。作者: ttyu 时间: 2011-3-17 15:21
应该不会的作者: ttyu 时间: 2011-3-17 15:21
数据源打开了吗作者: wangxy689 时间: 2011-3-21 20:45
打开了。就是新增加的数据能够删除,以前的数据不能删除。作者: wangxy689 时间: 2011-3-21 20:46
这是不是需要和FOXPRO 中的险select all 后再用删除?作者: liaohk 时间: 2011-3-21 21:08
Deleting all data from an Access database
Sometimes it may be necessary to delete all the data in a database
while retaining the table structure. If done manually, this job can
quickly become tedious. If your database has many tables, the
following code will clear all the data in a hurry.
Dim ctr As Container, doc As Document, db As Database
Set db = CurrentDB()
Set ctr = db.Containers!Tables
For Each doc in ctr.Documents
If Left$(doc.Name, 4) <> "MSys" Then 注释:Table is not a system table
db.Execute "Delete [" & doc.Name & "].*" & _
"From [" & doc.Name & "];"
End If
Next doc
You might not want to delete data from linked tables. This can be easily
accommodated by checking the Connect property for each TableDef document.
The modified code reads:
Dim ctr As Container, doc As Document, db As Database
Set db = CurrentDb()
Set ctr = db.Containers!tables
For Each doc In ctr.Documents
If Left$(doc.Name, 4) <> "MSys" And _
db.TableDefs(doc.Name).Connect = "" Then
注释:Table is not a system table or a linked table
db.Execute "Delete [" & doc.Name & "].*" & _
"From [" & doc.Name & "];"
End If
Next doc
You must also have cascading updates/deletes enabled for this procedure
to clear the data from all tables. As an alternative, run the code
multiple times. On the first pass through the database, the tables on
one side of the relationship are cleared, allowing the remaining tables
to be cleared on the next pass.
This tip was contributed by Dr. Michael S. Stoner, Henri Kover, and Stephen Bond