Hi,
I have a table where username and password is stored , now in an interface i want to access password based on the username, can it be possible to access data from dB using a constant in the interface?
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I know this isn't your question but why are you storing usernames and passwords in a database? I also wouldn't suggest this, but if you're going to use a constant to control what's being retrieved from the database why not just directly store the password in the constant?
We probably need a little more information to answer fully.