How to convert fingerprint to unique id to use it for searching in database?
<p>I have fingerprint reader secugen and I have been able to get my application to control the fingerprint device by scanning fingerprints and I have been able to save them to mysql database!</p>

<p>After saving the fingerprints to the db, I now want to search for the user using fingerprint, and I can't search using new fingerprint because the fingerprint saved as blob/img.
so I need to convert fingerprint to unique id to use it for searching in database?</p>

<p>I have mysql database with 9,000,000 user. Now I can get any user information by using user's (username)</p>

<pre><code>SELECT USERS FROM members WHERE username=username_var
</code></pre>

<p>But now I can't use <code>WHERE</code> in my query because I have fingerprint template which is instead of <code>(username)</code> and the fingerprint will be changed every time, so i can't use the fingerprint in my query like <code>(username)</code> when i use <code>WHERE</code> in my query.</p>

<p>All fingerprint SDK have functions can help me with this but they are not so fast and take 7 minutes to search and that's a very long time.</p>

<p>I do not know what to do and how. I hope that you you understand my problem </p>