Question

I have application where user enters name and other details for specific date. I need to check whether value/name user is trying to add exists already in the database column name. I have this code but this doesn’t work as it selects only one value. Thanks

Cursor c = dbe.rawQuery("SELECT name FROM tbl_user WHERE meeting_date LIKE'" + mydate + "'", null);

if ((c.getString(3)).equals(editTextName.getText().toString()))

{
// do something
}

Answer 1

If you are only checking for existence of a value in a field, the easiest way is to do a select count with the appropriate filter.

Something along the lines of

SELECT count(*)
FROM tbl_user
WHERE meeting_date LIKE ' + my_date'
AND name = ' + editTextName.getText() + '

this would allow you to easily and quickly determine if those value exist in your table.

If you need to check multiple tables, then you would have to do a join between those tables and write your filter accordingly.

If by chance you don’t have a good handle on SQL.
This site is a good starting place:
W3Schools SQL Tutorial

Hope this helps.