如何将数字与字符串中的空格一起删除,而我的数据如下所示:
randomtext = 567897
otherrandomtext = 3827475
evendifferentone : 483838
andsoon : 03948
type of contact 594837
other type of contact 453222223
这样看起来像这样:
randomtext
otherrandomtext
evendifferentone
andsoon
type of contact
other type of contact
我设法使用更新查询(如下所示)删除" ="之后的所有内容。但是如何同时更新两者(使用" ="和":#34;)?
UPDATE [MyTable]
SET [Name] = Left([Name], InStr([Name], "=") - 1)
WHERE [Name] Like "*=*"
我可以在两个单独的查询中执行此操作,而只有" ="或者":",但是当我还有像#34;联系人类型594837"这样的数据时,我不知道如何处理它。也许有一种方法可以删除所有数字,=和:符号?
答案 0 :(得分:1)
相当简单..您可以编写一个VBA函数,您可以实际嵌入到SQL查询中来执行此操作。我去了数据库工具(MS Access的顶部),Visual Basic,右键单击模块文件夹,插入 - >模块。编写/复制代码后,转到Visual Basic for Applications IDE顶部的Debug,然后单击“编译 YourDatabaseName 。
见下文:
Option Compare Database
Option Explicit
Public Function TrimString(fieldToTest As Variant) As Variant
Dim test, test2 As Variant
Dim trm As Variant
Dim intSearch, lngth As Integer
TrimString = Null
test = InStr(fieldToTest, "=")
test2 = InStr(fieldToTest, ":")
lngth = Len(fieldToTest)
If test > 0 Then
'We know it contains an equals sign
trm = Left(fieldToTest, test - 1)
trm = Trim(trm)
Debug.Print trm
ElseIf test2 > 0 Then
'We know it contains a colon
trm = Left(fieldToTest, test2 - 1)
trm = Trim(trm)
Debug.Print trm
ElseIf lngth > 0 Then
'Find out if it has integers in it
'Rebuild the string without Integers
For intSearch = 1 To lngth
If Not IsNumeric(Mid$(fieldToTest, intSearch, 1)) Then
trm = trm & Mid$(fieldToTest, intSearch, 1)
Else
End If
Next
trm = Trim(trm)
Else
'Regular String
'Do Nothing
trm = fieldToTest
End If
TrimString = trm
End Function
没有太多的错误处理,但我认为这可以回答你的问题。
我把它扔在一个表中,字段数据类型是Text:
ID stringTest (Field Name)
1. randomtext = 123453
2. otherrandmtext = 543555
3. evendifferentone : 453553
4. andsoon : 05453534
ID Expr1
1. randomtext
2. otherrandmtext
3. evendifferentone
4. andsoon
SELECT Table2.ID,
TrimString([stringTest]) AS Expr1
FROM Table2;
回想一下VBA代码TrimString
是函数名。
如果有什么我忽略了 - 请告诉我,我会尽力纠正它。