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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
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Solution 1

use this method:

public Cursor query(....)
CRDave1988 at 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 at 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 at 13-Feb-12 0:55am
see this example

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