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Pulling 5 digit numeric values out of SQL surrounded by `

Posted on 2013-12-03
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Last Modified: 2013-12-03
I have a request to parse a long and complex SQL query and pull out the 5 digit ID's.  I found a method here:

stackoverflow.com/questions/7927871/find-a-set-of-numbes-in-long-string-using-regex

Which appears to do what I need it to do but I can't get it to work.  It's not finding any row's at the "For Each" statement or atleast is not entering there...  Any assistance would be greatly appreciated!
Imports System.Globalization
Imports System.IO
Imports System.Windows.Forms
Imports System.Text.RegularExpressions
Imports System.Collections.Generic

Public Class Form1

    Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
        ProcessFile()
    End Sub

    Private Sub ProcessFile()
        Dim MyMatches As MatchCollection
        Dim MyRegex As New System.Text.RegularExpressions.Regex("^\d{5}$")

        MyMatches = MyRegex.Matches(txtEntry.Text.ToString)

        For Each Row As Match In MyMatches
            Console.WriteLine(Row.Value)
        Next
    End Sub
End Class

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This is a sample of the SQL I'm trying to parse (The SQL I'm parsing is very long and complex I've simplified this example):
SELECT * FROM TBL A INNER JOIN TBL2 S
ON A.SVC_ID = S.SVC_ID 
AND SVC_ID IN ('24223','27048','53075','59019');

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Ultimately I would like to output the findings to a second multiline textbox on my form.
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Question by:EDW_Gideon
  • 3
4 Comments
 
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Accepted Solution

by:
Terry Woods earned 500 total points
ID: 39693875
The pattern you're using ("^\d{5}$") should possibly be changed to "(?<!\d)\d{5}(?!\d)"

See if that helps
0
 
LVL 35

Expert Comment

by:Terry Woods
ID: 39693881
The reason being that ^ and $ match the start and end of the string, respectively. In your case, the numbers are not at the start or end of the string.
0
 
LVL 35

Expert Comment

by:Terry Woods
ID: 39693884
I'm hoping that negative-lookbehinds and negative-lookaheads will work. If not, then this may work, but it will also match the first 5 digits of numbers with more than 5 digits: "\d{5}"
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Author Closing Comment

by:EDW_Gideon
ID: 39693914
FANTASTIC!
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