how to check weather the sting is presented in database or not?

Question

1.00/5 (1 vote)

See more:

Hi all.. am doing a small project for doing the student registration and login form.. for this i have to do is, to restrict the username which is already in the database. can anyone please help me in doing this.

thanks in advance...

Posted 12-Feb-12 18:31pm

namasrikanth

Add a Solution

2 solutions

Solution 1

use this method:

public Cursor query(....)

Posted 12-Feb-12 18:34pm

CRDave1988

Updated 12-Feb-12 18:36pm

v2

Comments

CRDave1988 13-Feb-12 0:38am

In more practical approach username should be primary key so it don't allow Duplicate entry and throw Exception.

namasrikanth 13-Feb-12 0:49am

am not getting you.. actually i am able to search the string and store the values in cursor, then here is my problem in comparing the string with cursor, can you provide me a source code..

CRDave1988 13-Feb-12 0:55am

see this example http://www.higherpass.com/Android/Tutorials/Accessing-Data-With-Android-Cursors/2/

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

CRDave1988 · Accepted Answer · 2012-02-12T18:55:00

Solution 2

see this example
http://www.higherpass.com/Android/Tutorials/Accessing-Data-With-Android-Cursors/2/[^]

Posted 12-Feb-12 18:55pm

CRDave1988