Question

I want to remove all special characters (“,/{}etc.) from an input field being saved as a string to the DB.

What is the best approach?

Should this check be tackled with JS, ColdFusion or Microsoft SQL – Maybe all three?

How would I go about coding this using ColdFusion or Microsoft SQL?

Answer 1

You mean everything not alphanumeric?

I’d probably use a REReplace in the data layer.

<cfqueryparam 
  cfsqltype="cf_sql_varchar" 
  value="#REReplace(myVar,"[^0-9A-Za-z ]","","all")#" 
/>

Update: changed to include “space”.