Sql 如何使用破折号(-)作为条件的值
我不知道这在MS Access中是否可行,但我想做的是在SQL语句和或逗号中检测破折号(-)和使用Between 我有一个名为“Books”的表,表中有字段:BookID、Title、Subject 现在,如何查询允许用户在文本框中输入值的Books表,如:Sql 如何使用破折号(-)作为条件的值,sql,database,ms-access,Sql,Database,Ms Access,我不知道这在MS Access中是否可行,但我想做的是在SQL语句和或逗号中检测破折号(-)和使用Between 我有一个名为“Books”的表,表中有字段:BookID、Title、Subject 现在,如何查询允许用户在文本框中输入值的Books表,如: 1 or 1-5 or 1,3,4. 如果值为1,则sql语句应为: SELECT * FROM Books WHERE BookID = 1 SELECT * FROM Books WHERE BookID BETWEEN 1 And
1 or 1-5 or 1,3,4.
如果值为1,则sql语句应为:
SELECT * FROM Books WHERE BookID = 1
SELECT * FROM Books WHERE BookID BETWEEN 1 And 5
SELECT * FROM Books WHERE BookID IN (1,3,4)
如果值为1-5,则sql语句应为:
SELECT * FROM Books WHERE BookID = 1
SELECT * FROM Books WHERE BookID BETWEEN 1 And 5
SELECT * FROM Books WHERE BookID IN (1,3,4)
如果值为1,3,4,则sql语句应为:
SELECT * FROM Books WHERE BookID = 1
SELECT * FROM Books WHERE BookID BETWEEN 1 And 5
SELECT * FROM Books WHERE BookID IN (1,3,4)
从Books.BookID>1和Books.BookID<5的图书中选择图书.标题;
从我已有的东西上剪下
s = "SELECT * FROM Books WHERE BookID" & parseSarg("11,22,33")
使用
Public Function parseSarg(str As String) As String
Dim re As Object: Set re = CreateObject("vbscript.regexp")
re.Global = True
Select Case True
'//is number
Case reTest(re, "^\d+$", str): parseSarg = " = " & str
'//is number-number
Case reTest(re, "^\d+-\d+$", str): parseSarg = " BETWEEN " & Replace$(str, "-", " AND ")
'//is number,number[,number]
Case reTest(re, "^\d+(?:,\d+)*$", str): parseSarg = " IN (" & str & ")"
'//is >number
Case reTest(re, "^>\s*\d+$", str): parseSarg = " >" & Mid$(str, 2)
Case Else
parseSarg = " = 0 AND 1=0"
End Select
End Function
Function reTest(re As Object, pattern As String, value As String) As Boolean
re.pattern = pattern
reTest = re.Test(value)
End Function
它来自access中的文本框,因此VBA钩子应该是okhi,值必须来自文本框。只有一个文本框。