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Quotes in a value passed in a SQL expression  VB .NET 2003 Application

mphillip85
mphillip85 asked
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Last Modified: 2010-05-18
I have strings that have single quotes in the value.  When I use the value in my SQL expression, of course it does not like it.  Is there a way to get around this, other than changing the data in the table itself?
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Commented:
Yes, for all your string fields, do a simple replace:

str = str.Replace("'", "''")

Then, when outputting from the db, do the opposite:

str = str.Replace("''", "'")

Jake

Author

Commented:
How do I pass a select command text with the single quote in the expression of the value like


"Select * FROM myTable WHERE myName = '" & "Cat's" & "';"

Commented:
you use 2 single quotes for any single quote IN YOUR STRING.

So:

"Select * FROM myTable WHERE myName = '" & "Cat''s" & "'"

I don't know why you have the ; there?

Jake

Author

Commented:
I put the ; in there because it wont error but will not pass the selec command either.  Plus the programming book says to put the ;

How will this work.

"Select * FROM myTable WHERE Cat's= " & "Cat"s" & "'"

So you say that Cat's is = Cat"s ? Literally?

That is what I am going to end up with.  Since I am not changing the data in the table iteslf.

I hope I am being clear.  I am leaning on actually using CONTAINS when I find a single quote for these somewhat rare records.

Mike



Commented:
Yes, to get it to pass in SQL, you need to replace single quotes with double quotes.  Obviously, when you retrieve the data, you will need to parse them out.

This is the way it is...  Is it not working for you or something?

I'm just confused what the problem is.

Jake

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Commented:
Just wondering, but why the 'B'?

I have been trying to clear any issues here.  Was there something more you needed?

Jake
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