Question

I am writing a searching function, and have thought up of this query using parameters to prevent, or at least limit, SQL injection attacks. However, when I run it through my program it does not return anything:

SELECT * FROM compliance_corner WHERE (body LIKE '%@query%') OR (title LIKE '%@query%')

Can parameters be used like this? or are they only valid in an instance such as:

SELECT * FROM compliance_corner WHERE body LIKE '%<string>%' (where <string> is the search object).

EDIT: I am constructing this function with VB.NET, does that have impact on the syntax you guys have contributed?

Also, I ran this statement in SQL Server: SELECT * FROM compliance_corner WHERE (body LIKE '%max%') OR (title LIKE%max%’)` and that returns results.

Answer 1

Your visual basic code would look something like this:

Dim cmd as New SqlCommand('SELECT * FROM compliance_corner WHERE (body LIKE '%' + @query + '%') OR (title LIKE '%' + @query + '%')')  cmd.Parameters.Add('@query', searchString)