Question

Hi i’m working on an application and I’ve just started toying with SQL I’ve set up a database with all my information and what not now i need to be able to get the values and i haven’t been able to figure it out.

What I’d like is a java method which i can pass the column name and row id and have it return the value.

For instance if my table were like this

--------------
| _id | data |
--------------
| 1   | cat  |
| 2   | dog  |
| 3   | fish |
--------------

I would like to call the method say getValue(2, data); and it would return dog any help with this would be greatly appreciated as i haven’t been able to figure this seemingly easy problem out

Thank you!

Answer 1

Something like this:

String result;
String[] cols = new String[] { "data" };
String[] args = new String[] { id };
Cursor cursor = mSqliteDb.query(MY_TABLE, cols, "_id = ?", args, null, null, null);
if (cursor.moveToNext())
    result = cursor.getString(0);
cursor.close();

MY_TABLE is the table you are querying, cols is a String array containing the columns you’re retrieving, and args is a String array containing the ID argument.