How to find and update the path in database

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dear friends

i have a problem in the query/logic
iam saving the complete path of my files say
c:\mysyncfolder\hello\abc.txt
c:\mysyncfolder\hello123\abc1.txt
in case the user is renaming the folder say 'hello' to 'hello1'

i want to update the path in the database

but it is also returning the folders hello123. with hello folder
how can i solve this problem

What I have tried:

currently iam using following query
Select * from FileInformation Where FilePath like '" + myPath + "%' And Status<>'Deleted'

Posted 16-Feb-16 23:05pm

srilekhamenon

Updated 16-Feb-16 23:31pm

v2

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dharan1990 17-Feb-16 5:40am

Since you are using like both records will be pulled if you want to check for specific keyword try using contains in sql.

2 solutions

Solution 2

Two ways I can think of:

Use the '_' wildcard. It is a single char wildcard unlike '%' which is 0 to many chars.

Or you can look for the closest match, which it your case will be the shortest filepath.

You won't be able to tell the difference between hello1.txt and helloz.txt

Posted 16-Feb-16 23:35pm

Andy Lanng

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OriginalGriff · Accepted Answer · 2016-02-16T23:32:00

If you are trying to select "whole folder names" only, then use explicit backslashes:

SQL

SELECT * FROM FileInformation Where FilePath LIKE '" + myPath.Trim('\\') + "\\%'" AND Status <> 'Deleted'

But please, don't do it like that.
Do not concatenate strings to build a SQL command. It leaves you wide open to accidental or deliberate SQL Injection attack which can destroy your entire database. Use Parametrized queries instead.